Category: Uncategorised

“A supplied air respirator system is much more than just a compressor. Every part of the installation plays a role in keeping your workforce protected and your business compliant.”

Installing a supplied air respirator system isn’t as simple as buying a compressor and plugging it in.

To remain compliant and provide safe breathing air, the complete system needs to be correctly specified, professionally installed, commissioned, tested and maintained throughout its working life.

At Velocity Safety, we provide complete supplied air respirator installations across the UK, removing the headache of managing multiple suppliers and ensuring every part of the system works together.

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What Is Included in a Complete Supplied Air Respirator System?

A professionally installed supplied air respirator system includes much more than the compressor itself.

A typical installation may include:

• Screw compressor
• Breathing air filtration unit
• Supplied air respirator
• Airline hose assembly
• Professional installation
• System commissioning
• EN12021 air purity testing
• PSSR Written Scheme of Examination where applicable
• User training
• Ongoing servicing and maintenance options

How Much Does a Supplied Air Respirator Installation Cost?

At the time of writing, a complete supplied air respirator installation from Velocity Safety starts from £10,995 + VAT for mainland UK installations.

This package includes supply, installation, commissioning, EN12021 air purity testing, a PSSR Written Scheme of Examination where required, and user training.

Bringing everything together through one provider helps simplify compliance and reduces the need to coordinate multiple contractors.

Why Is Air Purity Testing So Important?

Supplying compressed air is only part of the process.

The air itself must also be suitable for breathing.

Following installation, air purity testing should be completed to confirm compliance with EN12021, ensuring contaminants remain within acceptable limits before the system enters service.

Learn more about our Breathing Air Testing service.

Why Does the Compressor Need a Written Scheme of Examination?

Many supplied air systems include pressure equipment that falls under the Pressure Systems Safety Regulations 2000 (PSSR).

Where applicable, a Written Scheme of Examination (WSE) should be produced before the equipment enters service, helping businesses meet their legal duties.

Find out more about our PSSR examinations.

Why Ongoing Maintenance Matters

Installing the system is only the beginning.

To maintain performance, warranty and compliance, supplied air respirator systems require ongoing maintenance.

This may include:

• Three-monthly air purity testing.
• Annual compressor servicing.
• Filter replacement.
• Inspection of respiratory protective equipment.
• User refresher training where required.

Velocity Safety also provides ongoing RPE examination and servicing.

Final Takeaway

A supplied air respirator system is an investment in both worker safety and long-term compliance.

Choosing a provider that can install, commission, test and maintain the complete system helps ensure everything continues to perform as intended long after installation has been completed.

Frequently Asked Questions

Here are some of the questions we’re regularly asked about supplied air respirator systems.

How much does a supplied air respirator installation cost?

Velocity Safety’s complete UK mainland supplied air respirator installations start from £10,995 + VAT at the time of writing. Final pricing may vary depending on site requirements and system specification.

Does a supplied air compressor need a Written Scheme of Examination?

Many do. Whether a compressor falls under PSSR depends on its design and operating characteristics. A competent person can advise whether a WSE is required.

How often should breathing air be tested?

Many businesses choose three-monthly air purity testing to help demonstrate continued compliance with EN12021.

Does Velocity Safety install complete supplied air systems?

Yes. We can supply, install, commission and maintain complete supplied air respirator systems across the UK.

Resources

• Pressure Systems Safety Regulations 2000 (L122)
• HSE COSHH Guidance

“Saving money on day one means very little if the equipment can’t be repaired five years later.”

When businesses buy fall arrest equipment online, the purchase price often becomes the deciding factor.

What many don’t think about is what happens when that equipment eventually requires servicing, repair or replacement parts.

Recently we spoke to a client who had invested around £5,000 in fall arrest blocks. When the equipment eventually needed attention, there was one major problem.

Nobody could repair them.

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A £5,000 Lesson in Buying the Wrong Equipment

We were recently contacted by a client who had invested approximately £5,000 in fall arrest blocks purchased online.

When the equipment eventually required servicing, the expectation was simple.

“You’ll be able to repair them.”

Unfortunately, after establishing where the equipment had been purchased from, the answer was no.

There were no readily available spare parts, no documented repair procedures and no recognised support route for servicing the equipment.

Regular PFPE inspections can identify issues early, but only if the equipment can actually be repaired and supported by the manufacturer.

Regular PFPE inspections can identify issues early, but only if the equipment can actually be repaired and supported by the manufacturer.

Why Can’t Some Fall Arrest Blocks Be Repaired?

Not every manufacturer provides long-term support for the products they sell.

Some equipment is manufactured with readily available replacement parts and approved servicing procedures.

Others simply are not.

If replacement components cannot be sourced or there is no approved servicing procedure, even relatively small faults can result in the entire unit being scrapped.

This isn’t because engineers don’t want to repair the equipment.

It’s because doing so safely and compliantly simply isn’t possible.

Learn more about our Fall Arrest Block Servicing service.

Velocity Safety is also an Approved PFPE Inspection Centre, allowing us to inspect a wide range of personal fall protection equipment alongside fall arrest blocks.

Questions To Ask Before Buying Fall Arrest Equipment

Before purchasing fall arrest equipment, ask your supplier:

• Can this unit be serviced in the UK?
• Are spare parts readily available?
• Who carries out repairs?
• Is there an approved service centre?
• Can the equipment be inspected throughout its working life?
• Can replacement parts still be obtained in five or ten years?
• What happens if it fails its examination?

If those questions cannot be answered, the cheapest option today could become the most expensive option tomorrow.

Read our guide on buying safety equipment online.

Final Takeaway

Buying compliant fall arrest equipment isn’t just about today’s purchase price.

It’s about making sure the equipment can still be serviced, repaired and supported years into the future through a recognised provider.

Choosing equipment with proper manufacturer support can prevent costly replacement and keep your workforce protected for longer.

Frequently Asked Questions

Here are some common questions businesses ask before purchasing fall arrest blocks.

Can every fall arrest block be repaired?

No. Some manufacturers do not provide spare parts or approved repair procedures, meaning replacement may be the only option.

Why can’t some fall arrest blocks be repaired?

Without replacement parts, servicing information or manufacturer support, repairs cannot always be carried out safely or compliantly.

How can I avoid buying unsupported equipment?

Choose equipment supplied through reputable providers who can also support servicing, repairs and periodic inspections throughout the equipment’s working life.

Resources

• • HSE – Work at Height

 

“Installing fire extinguishers properly is about far more than putting a red box on the wall.”

Most people think a fire extinguisher installation simply involves fixing extinguishers to the wall and walking away.

In reality, a compliant installation involves much more than that. Fire action notices, refuge area signage, fire blanket positioning, mounting methods and even the way equipment is fixed to the building can all affect the finished result.

Recently, we completed a fire extinguisher installation where a few practical challenges meant we needed to think differently to deliver a compliant solution without compromising the client’s building.

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Fire Extinguisher Installation Case Study

We recently completed another fire extinguisher installation where the extinguishers themselves were only one part of the project.

As with many commercial premises, the installation also required the correct fire action signage, refuge area information and fire blanket identification to ensure the completed installation aligned with current guidance.

Instead of simply hanging equipment wherever there was space, each location was considered individually to ensure occupants could easily identify the correct fire safety information during an emergency.

Why Fire Safety Signage Matters

Good fire safety signage helps occupants understand what they should do during an emergency.

Depending on the building, this may include:

• Fire action notices on floors served by lifts stating “Do Not Use Lift”.
• Identification of refuge areas.
• Information signage within refuge areas.
• Fire blanket identification signs.
• Fire blanket operating instructions positioned correctly behind the blanket.

These aren’t optional extras or over-the-top additions.

They form part of good fire safety practice and help ensure occupants receive the correct information when it matters most.

Learn more about our fire extinguisher signage services.

What Happens If You Can’t Drill Into The Walls?

Every building presents different challenges.

On this particular project, the client did not want wall stands and previous contractors had advised that they could not drill into the walls because an asbestos survey had not been completed.

Rather than simply walking away, we installed glued 18mm primed pattresses to provide a suitable mounting solution without drilling into the building fabric.

To finish the installation professionally, decorators’ caulk was used around the pattresses so no post-decoration was required.

Small details like these help produce a cleaner finish while solving practical problems for the client.

Final Takeaway

A compliant fire extinguisher installation involves much more than fitting extinguishers to a wall.

Correct signage, suitable mounting methods, proper commissioning and attention to detail all contribute towards a safer workplace and a more professional finished installation.

Every building is different, which is why practical experience often matters just as much as the equipment itself.

Frequently Asked Questions

Here are some of the questions we’re commonly asked about fire extinguisher installations.

Do fire extinguishers need signs?

Yes. Fire extinguisher locations should be clearly identified using appropriate signage so occupants can quickly locate equipment during an emergency.

Can fire extinguishers be installed without drilling?

In some situations, yes. Alternative fixing methods may be appropriate depending on the building and the client’s requirements.

Are fire blankets required to have signs?

Yes. Fire blankets should be correctly identified, with operating instructions positioned appropriately behind the blanket where applicable.

Resources

• Government Fire Safety Guidance
• BS 5306-8

“Buying safety equipment is easy. Knowing who will maintain it in five years’ time is the difficult part.”

Buying health and safety equipment online has never been easier. Within a few clicks you can order everything from fire extinguishers and respirators to gas monitors, fall arrest equipment and lifting accessories.

But one question is often overlooked.

Who is going to inspect it, service it, calibrate it or repair it when something goes wrong?

For many businesses, the cheapest online purchase quickly becomes the most expensive option once equipment starts failing, replacement parts can’t be sourced or nobody is willing to maintain what has been bought.

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Why Aftercare Matters More Than the Purchase Price

Many pieces of health and safety equipment are not simply bought once and forgotten about. They require ongoing inspection, servicing, calibration, testing or repair throughout their working life.

Buying from a supplier that cannot support the equipment after the sale can leave businesses with equipment that nobody is willing or able to maintain.

Instead of repairing perfectly serviceable equipment, many organisations simply throw it away and buy another one.

That creates unnecessary cost, waste and compliance risk.

What Safety Equipment Requires Ongoing Support?

Many businesses are surprised by how much workplace safety equipment requires regular maintenance.

Examples include:

• Fire extinguishers
• Gas detectors
• Respiratory protective equipment (RPE)
• Fall arrest blocks and inertia reels
• Harnesses and personal fall protection equipment
• CAT & Genny equipment
• Breathing air testing equipment

Before purchasing any of these products, it is worth asking who will maintain them over the next five or ten years.

The Hidden Cost of Cheap Online Safety Equipment

The initial purchase price is often only a small part of the total cost.

If spare parts cannot be obtained, repairs are unavailable or servicing is impossible, businesses often find themselves replacing equipment that could otherwise have remained in service.

In many cases we see equipment scrapped simply because nobody knows how to repair it or source replacement components.

Questions to Ask Before Buying Safety Equipment

Before placing an order, consider asking:

• Who will service this equipment?
• Can replacement parts be obtained?
• Who carries out repairs?
• Can it be calibrated in the UK?
• Is technical support available?
• What happens if it fails inspection?
• Can the supplier support me after the sale?

If those questions cannot be answered confidently, it may be worth reconsidering where the equipment is being purchased from.

Final Takeaway

Buying safety equipment online is not automatically the wrong decision.

However, buying equipment without considering who will maintain, inspect or repair it throughout its working life can become an expensive mistake.

Choosing a supplier that offers ongoing support often delivers far better value than simply choosing the lowest purchase price.

Frequently Asked Questions

Buying safety equipment is only the first step. Here are some common questions businesses ask about servicing, maintenance and long-term support.

Is buying safety equipment online always a bad idea?

No. The important consideration is whether the equipment can be properly maintained, inspected and repaired throughout its working life.

What safety equipment needs regular servicing?

Examples include fire extinguishers, gas detectors, respirators, fall arrest equipment, CAT & Genny units and many other items used for statutory compliance.

Why is aftercare important?

Without servicing, calibration or repairs, equipment may fail inspections, require premature replacement or no longer provide the protection it was purchased for.

Resources

• Health and Safety Executive (HSE)

“Testing a floor before it’s installed is usually much cheaper than replacing it afterwards.”

Slip resistance is often only considered after someone has had an accident or once a newly installed floor starts causing concerns.

By that point, changing the flooring can be expensive, disruptive and potentially lead to insurance claims or legal disputes.

The better approach is to understand how slip resistant a floor is before it is installed. Pendulum slip testing allows flooring samples to be independently tested before they ever reach site, helping designers, contractors and building owners make informed decisions.

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Why Test Flooring Before Installation?

Changing flooring after installation is rarely cheap. If a surface is later found to have poor slip resistance, businesses may face replacement costs, disruption to operations and potential liability if someone slips before corrective work is completed.

Testing flooring before installation allows potential problems to be identified before the material is fitted, helping clients choose the right product with greater confidence.

Learn more about our Pendulum Slip Testing service.

Can Flooring Samples Be Tested?

Yes.

At Velocity Safety we can carry out pendulum testing on flooring samples within our workshop before installation takes place.

Instead of waiting until an entire floor has been fitted, designers, contractors and building owners can submit sample materials for independent assessment.

Are Manufacturer R Ratings Enough?

Manufacturer data is useful, but it should not always be relied upon in isolation.

Many flooring products are marketed using an R rating, however the HSE recommends pendulum testing when assessing slip resistance because it measures the surface differently and provides a recognised Pendulum Test Value (PTV).

Where there is uncertainty, independent testing provides additional reassurance before installation proceeds.

Why Independent Testing Matters

Independent testing gives clients confidence that the findings are impartial and based solely on measured performance.

Final Takeaway

If you’re specifying flooring for a new project, testing it before installation can help avoid expensive mistakes later.

Understanding slip resistance before committing to a flooring product gives designers, contractors and building owners better information on which to base their decisions.

Frequently Asked Questions

Here are some of the questions we’re regularly asked about pre-installation pendulum slip testing.

Can you pendulum test flooring before it is installed?

Yes. Flooring samples can be tested before installation, helping identify potential slip resistance concerns before fitting takes place.

Is manufacturer slip resistance data enough?

Manufacturer information can be useful, but independent testing provides additional reassurance and objective performance data.

Can testing before installation save money?

Potentially yes. Identifying unsuitable flooring before installation is often significantly cheaper than replacing flooring after completion.

Resources

• HSE – Slips and Trips
• HSE – Assessing the Slip Resistance of Flooring

“Cheap doesn’t have to mean non-compliant.”

Yes, you can buy refurbished or older fire extinguishers, but only if they are still safe, suitable, serviceable and properly commissioned before use.

A used extinguisher is not automatically unsafe. Equally, a cheap extinguisher is not automatically a bargain. What matters is its condition, service history, remaining life, suitability for the fire risk, and whether it has been checked by a competent person before being placed into service.

At Velocity Safety, we will always try to work with clients to find a practical solution. Sometimes that means supplying brand new equipment. Sometimes, where suitable, it can mean using older stock or slight seconds that still have years of service life left.

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Can Refurbished Fire Extinguishers Be Used Legally?

Refurbished or older fire extinguishers can be used legally if they are still fit for purpose and have been properly checked before being placed into service.

The key point is that the extinguisher must be suitable for the fire risk and maintained in efficient working order. For businesses, this links back to your duties under the Regulatory Reform (Fire Safety) Order 2005, as well as the relevant fire extinguisher servicing and commissioning standards.

In simple terms, the extinguisher needs to be:

• The correct type for the fire risks in that location.
• In good physical condition with no obvious damage, corrosion or missing parts.
• Within its usable service life and not overdue for required maintenance.
• Properly labelled, tagged and recorded for traceability.
• Commissioned before use if it is being supplied or placed on a new site.

Learn more about our fire extinguisher commissioning service.

When Can an Older Fire Extinguisher Still Be a Good Option?

An older extinguisher can be a good option when it has a known history, has been stored correctly, is still in good condition and has enough remaining life to make sense commercially.

For example, a fire extinguisher may be classed as older stock because it is not brand new, has minor cosmetic marks, or does not have the full 5 or 10 years of life remaining. That does not always mean it should be scrapped.

In the right situation, older stock can help businesses get a compliant fire extinguisher setup without overspending, especially during:

• Warehouse fit-outs
• Temporary projects
• Construction refurbishments
• Short-term site mobilisation
• Budget-sensitive compliance upgrades

The important part is honesty. The client should know what they are getting, how much service life remains, and whether the extinguisher is suitable for the site.

A Real Example: Budget Fire Extinguisher Setup for a Warehouse

We recently had a client ask if we could provide a cost-effective extinguisher setup for a new warehouse they had taken on.

They also had some fit-out and refurbishment work taking place, so they needed to cover both the warehouse and the temporary work activities. The brief was simple: compliant, practical and as cost-effective as possible.

Rather than automatically quoting for a full brand new setup, we looked at what we had available and supplied a mix of slight seconds and older extinguishers that still had years of life left in them.

The total invoice for the client was £1,200 + VAT, supplied, commissioned and ready to go.

This is the kind of practical solution we try to provide where it makes sense. We are small enough to care and be flexible, but big enough to get it done properly.

When Should You Avoid Second-Hand Fire Extinguishers?

Not every used extinguisher is worth buying. In some cases, a cheap extinguisher can quickly become a false economy.

You should be very cautious if an extinguisher has:

• No service history
• No clear manufacturing or maintenance labels
• Visible corrosion, dents or damage
• Missing pins, seals, horns, hoses or tags
• Unknown storage conditions
• No evidence of pressure or weight checks
• Been bought from an unknown online seller

Buying a random second-hand extinguisher online and hoping for the best is not the same as buying a professionally checked and commissioned extinguisher from a competent provider.

If in doubt, get it checked before relying on it.

Do Refurbished Fire Extinguishers Need Commissioning?

Yes. If a refurbished or older extinguisher is being supplied to a new site, it still needs to be commissioned before being placed into service.

Commissioning confirms the extinguisher is ready for use, suitable for the location, correctly labelled and recorded. It also gives the site a starting point for future maintenance records.

This is especially important if extinguishers are being used as part of a warehouse setup, construction project, refurbishment site or temporary fire point.

Read our fire extinguisher commissioning guide.

New vs Refurbished Fire Extinguishers

There is no single right answer for every site. Sometimes new extinguishers are the better option. Sometimes refurbished or older stock is perfectly suitable.

Option	Best For	Things to Consider
New extinguishers	Long-term premises, full service life, standard compliance upgrades	Higher upfront cost, but maximum remaining life
Refurbished or older stock	Budget-sensitive sites, temporary projects, short-term fit-outs	Must be inspected, suitable, commissioned and clearly explained
Unknown used extinguishers	Generally not recommended	Risky without service history, inspection records or professional checks

How Velocity Safety Helps Keep Costs Sensible

We know not every client has an unlimited budget. If you are taking on a new warehouse, setting up a temporary site or dealing with an unexpected compliance issue, you might need a solution that works without paying inflated prices.

Where suitable, we can help with:

• Fire extinguisher supply and installation
• Commissioning and labelling
• Fire point stands and temporary site setups
• Fire extinguisher servicing and maintenance
• Old extinguisher removal and disposal

We will always try to work with you to find a sensible solution. That does not mean cutting corners. It means finding the right level of compliance for the site, the risk and the budget.

Small enough to care. Flexible enough to help. Big enough to get it done.

Final Takeaway

Refurbished or older fire extinguishers can be a safe, compliant and cost-effective option when they are supplied by a competent provider and properly checked before use.

The risk comes from buying unknown extinguishers with no service history and assuming they are ready to protect your site.

If you need a compliant setup but you are working to a budget, speak to a provider who will be honest about your options.

Frequently Asked Questions

Businesses often ask whether buying refurbished or older fire extinguishers is a sensible way to reduce costs. Below are some of the questions we’re most commonly asked about refurbished extinguishers, compliance and when they may still be suitable for use.

Can you use refurbished fire extinguishers?

Yes, refurbished fire extinguishers can be used if they are still safe, suitable, serviceable and properly commissioned before being placed into service.

Are second-hand fire extinguishers safe?

They can be, but only if their condition, service history and remaining life are known. Avoid relying on unknown second-hand extinguishers bought online without professional checks.

Do refurbished extinguishers need servicing?

Yes. Refurbished extinguishers still need to be inspected, maintained and serviced in line with the relevant requirements. They should also be commissioned before use if supplied to a new site.

Is it cheaper to buy refurbished fire extinguishers?

It can be cheaper, but only if the extinguisher is suitable and has enough remaining life to make it worthwhile. A low purchase price is not good value if the extinguisher fails inspection shortly afterwards.

Can Velocity Safety supply budget fire extinguisher setups?

Yes. Where suitable, Velocity Safety can help with cost-effective fire extinguisher setups using new, older or slight-second stock that is checked, commissioned and ready for use.

Resources

• Regulatory Reform (Fire Safety) Order 2005
• BS 5306-3:2024 – Commissioning and Maintenance of Portable Fire Extinguishers
• BS 5306-8:2012 – Selection and Positioning of Portable Fire Extinguishers

CAT4, CAT4+, C.Scope and Radiodetection tools all help reduce cable strike risk, but they are not all designed for the same level of locating work.

Cable avoidance tools are used every day on construction, utilities, groundwork, highways and maintenance sites. Their job is simple in principle: help operators detect buried services before excavation, drilling or ground disturbance begins.

But choosing between CAT4, CAT4+, C.Scope and higher-end Radiodetection locators can quickly become confusing.

Some tools are designed for quick avoidance sweeps. Others add depth estimation, data logging, GPS records, swing warnings, daily self-tests or advanced precision locating features.

This guide explains the main differences, when each type of tool may be suitable, and why calibration, checks and competent use still matter regardless of the model.

Here’s what this guide covers:

What Is a Cable Avoidance Tool?

A cable avoidance tool, often called a CAT, is used to help detect buried services before excavation or ground disturbance work begins.

Cable avoidance tools are commonly used to detect signals from:

• Live power cables
• Metallic pipes
• Telecommunications cables
• Utility services carrying detectable radio signals
• Services energised using a signal generator

A CAT is normally used alongside site plans, visual checks, safe digging procedures and a signal generator, often called a Genny.

A cable avoidance tool should not be treated as a guarantee that the ground is clear. It is one part of a wider safe excavation process.

What Is a CAT and Genny?

A CAT and Genny setup combines a cable avoidance tool with a signal generator.

The CAT detects signals from buried services. The Genny applies a detectable signal to services that may not naturally give off a strong enough signal to be found reliably in passive modes.

Using a Genny can help locate services such as:

• Dead or unloaded cables
• Metallic pipes
• Services that are not producing a strong power or radio signal
• Utilities that need to be traced more deliberately across a work area

This is why many safe digging procedures expect operators to use both a CAT and a Genny where appropriate, rather than relying on passive detection alone.

What Can Cable Avoidance Tools Miss?

Cable avoidance tools are important safety instruments, but they cannot detect every buried service in every situation.

A CAT may struggle to detect:

• Non-metallic pipes without a tracer wire or detectable signal
• Dead cables that are not carrying current
• Poorly earthed services
• Deep services beyond the tool’s effective detection range
• Congested services where signals overlap or distort
• Services affected by poor ground conditions or electrical interference

This is why cable avoidance tools should be used alongside site plans, visual inspection, safe digging methods, trial holes and competent judgement.

The tool reduces risk. It does not prove the ground is clear.

CAT4 vs CAT4+: What Is the Difference?

The Radiodetection CAT4 is one of the most widely recognised cable avoidance tools used on UK sites.

Both CAT4 and CAT4+ are designed to detect buried services using common locating modes such as Power, Radio, Genny and Avoidance Mode.

The key difference is that CAT4+ includes depth estimation when used with a compatible Genny signal generator.

In simple terms:

• CAT4: used for detecting and locating buried services.
• CAT4+: includes CAT4 functionality plus depth estimation in suitable conditions.

Depth estimation can be useful, but it still needs to be understood properly. Depth readings can be affected by signal distortion, nearby services, poor technique, ground conditions and whether the locator is correctly positioned.

A depth reading should support safe decision-making, not replace safe digging procedures.

What About gCAT4+?

The gCAT4+ is a more advanced version within the CAT4 range.

It is generally used where organisations need stronger evidence of tool use, operator behaviour and site activity.

Features may include:

• Usage logging
• GPS or GNSS location logging
• Bluetooth support
• Service due indicators
• Swing warning features
• Support for fleet management and compliance records

This type of tool can be valuable for larger contractors, utilities, hire fleets and organisations that need clearer records of how equipment is being used on site.

How Is C.Scope CXL4 Different?

C.Scope CXL4 cable avoidance tools are another popular option for detecting underground pipes and cables.

The CXL4 range includes models with optional data logging, GPS and Bluetooth capabilities.

One of the main differences is the use of simultaneous dual-frequency operation, commonly 33kHz and 131kHz. This can help detect some smaller diameter or poorly earthed services when used with compatible equipment.

C.Scope CXL4 tools may also include:

• Power, Radio, Generator and AllScan modes
• Automatic Daily Self-Test
• AlarmZone for shallow services
• Dynamic Swing Sensor
• Optional data logging
• Optional GPS and Bluetooth on higher models
• Robust IP-rated design

C.Scope tools are often chosen by teams looking for a rugged site locator with built-in daily validation features and optional usage records.

Where Do Radiodetection RD7200 and RD8200 Fit In?

Radiodetection RD7200 and RD8200 locators are not direct equivalents to basic CAT tools.

They are more advanced cable and pipe locators designed for precision utility tracing, complex networks and specialist locating work.

They may be used where teams need to:

• Trace specific utilities through congested networks
• Work around high electrical interference
• Use multiple active frequencies
• Carry out more detailed utility mapping
• Record usage data or GPS information
• Support professional utility surveying work

For many day-to-day excavation avoidance tasks, a CAT and Genny may be appropriate. For more complex tracing, utility mapping or professional survey work, an RD7200 or RD8200 style locator may be more suitable.

CAT4 vs CAT4+ vs C.Scope vs Radiodetection: Quick Comparison

Tool Type	Best Suited For	Typical Strength	Main Limitation
CAT4	General cable avoidance	Familiar, widely used site locator	No depth estimation on standard model
CAT4+	Cable avoidance with depth estimation	Adds depth information when used correctly with a Genny	Depth readings still depend on conditions and technique
gCAT4+	Fleet compliance and usage records	Data logging, GPS and usage evidence	More than some small sites need
C.Scope CXL4	Robust site locating and validation	Dual-frequency operation and Automatic Daily Self-Test	Feature set depends on the exact model selected
RD7200 / RD8200	Precision tracing and specialist utility locating	Advanced frequencies, mapping and complex tracing features	Over-specified for simple avoidance-only tasks

Which Cable Avoidance Tool Should You Choose?

There is no single best cable avoidance tool for every site.

The right choice depends on the task, risk level, operator competence and documentation requirements.

As a broad guide:

• Choose CAT4 for straightforward cable avoidance tasks where depth estimation and data logging are not required.
• Choose CAT4+ where depth estimation is useful and operators understand how to interpret it correctly.
• Choose gCAT4+ where usage records, GPS, operator behaviour and fleet compliance matter.
• Choose C.Scope CXL4 where you want a robust alternative with daily self-test features and optional data logging or GPS.
• Choose RD7200 or RD8200 for precision locating, utility mapping and more complex tracing work.

The important point is that the tool must match the task. A more expensive locator is not automatically better if the operator is untrained or the work only requires basic avoidance. Equally, a basic CAT may not be enough for complex utility mapping or specialist tracing.

Why Calibration Still Matters

Cable avoidance tools are safety-critical instruments.

If the tool is damaged, overdue for checks, poorly maintained or used incorrectly, the risk of a missed service increases.

Calibration and validation help confirm that the tool is working as expected and suitable for continued use.

Depending on the manufacturer and model, this may involve:

• Annual calibration
• Remote certification or eCert-style checks
• Automatic Daily Self-Test records
• Product validation certificates
• Service due indicators
• Inspection of accessories such as Gennys, leads and clamps

The exact requirement will depend on the tool, manufacturer guidance, internal policy and site requirements.

For many contractors, the key requirement is not just that the tool works, but that there is clear evidence it has been checked, validated and kept within the expected service or calibration regime.

Velocity Safety provides cable avoidance tool, CAT and signal generator calibration services to help businesses keep equipment checked, documented and ready for use.

Equipment Choice Does Not Replace Competence

Even the best cable avoidance tool can give poor results if it is used incorrectly.

Common issues include:

• Sweeping too quickly
• Swinging the locator incorrectly
• Relying only on Power mode
• Failing to use a Genny where required
• Ignoring weak or inconsistent signals
• Misunderstanding depth readings
• Failing to compare readings with drawings, trial holes or site evidence

A cable avoidance tool should support a safe system of work. It should not be treated as a shortcut around training, planning or safe digging procedures.

FAQs

Here are answers to some of the most common questions about CAT4, CAT4+, C.Scope, Radiodetection and cable avoidance tool calibration.

What is the difference between CAT4 and CAT4+?

The main difference is that CAT4+ includes depth estimation when used with a compatible Genny signal generator. The standard CAT4 is used for detecting and locating buried services but does not provide the same depth estimation feature.

Is CAT4+ better than CAT4?

CAT4+ offers additional functionality because it can provide depth estimation in suitable conditions. However, whether it is “better” depends on the task, operator competence and whether depth information is needed.

What is the difference between C.Scope and Radiodetection?

C.Scope and Radiodetection both produce cable avoidance tools and utility locators. C.Scope CXL4 tools are known for features such as dual-frequency operation and Automatic Daily Self-Test, while Radiodetection produces both CAT tools and advanced precision locators such as the RD7200 and RD8200.

Is RD8200 the same as a CAT?

No. The RD8200 is a more advanced precision cable and pipe locator. It is designed for complex utility tracing, mapping and specialist locating work rather than basic cable avoidance alone.

Can you use a CAT without a Genny?

Yes, but relying on a CAT alone can leave gaps. Passive modes may only detect services that are carrying a suitable power or radio signal. A Genny helps apply a detectable signal to services that may otherwise be missed.

What can a cable avoidance tool not detect?

A cable avoidance tool may struggle to detect non-metallic pipes, dead cables, poorly earthed services, deep utilities, distorted signals or services in congested ground. This is why CATs should be used as part of a wider safe digging process.

What is the best cable avoidance tool?

The best cable avoidance tool depends on the task. CAT4 and CAT4+ are commonly used for general avoidance work, C.Scope CXL4 tools are a strong alternative for site locating and validation, while RD7200 and RD8200 locators are better suited to precision tracing and specialist utility detection.

Do cable avoidance tools need calibration?

Yes, cable avoidance tools should be checked and validated in line with manufacturer guidance, site requirements and internal safety procedures. Calibration or validation helps confirm the tool is functioning correctly.

How often should CAT and Genny equipment be calibrated?

Calibration frequency depends on the manufacturer, model, usage and site requirements. Many organisations arrange annual calibration, but equipment should also be checked if it has been damaged, dropped or is giving unreliable readings.

Can Velocity Safety calibrate CAT and Genny equipment?

Yes. Velocity Safety provides cable avoidance tool, CAT and signal generator calibration services for businesses across the UK.

Resources

• HSE: HSG47 Avoiding Danger from Underground Services
• CAT & Genny Calibration Services

If you’ve ever seen someone being lowered into a manhole, rescued from a confined space, or working safely over the edge of a rooftop, there is a good chance a davit arm was involved.

Davit arms are widely used across construction, utilities, water treatment, facilities management and industrial sites. They provide a secure overhead anchorage point for lifting, lowering, rescue and fall protection activities where conventional access equipment may not be practical.

Despite being common on many sites, davit arms are often misunderstood. Many people know they are used for confined space entry or rescue, but are less familiar with how they work, what standards apply, and why regular inspection and pull testing are so important.

This guide explains what a davit arm is, where it is used, the different types available, and what employers need to know about inspection, maintenance and compliance.

Here’s what this guide covers:

What Is a Davit Arm?

A davit arm is a mechanical arm mounted onto a fixed or portable base that provides a safe overhead anchorage point.

The arm extends outwards over an opening, edge or working area, allowing personnel, rescue systems or equipment to be raised, lowered or secured safely.

Most davit systems consist of:

• A davit arm
• A mast or upright support
• A base or socket
• Connection points for winches, retrieval devices or fall arrest equipment
• Associated rescue and lifting accessories

Some davit systems are permanently installed, while others are portable and can be moved between different locations around a site.

Davit Arm vs Davit System: What’s the Difference?

Strictly speaking, the davit arm is only one part of the full system.

The complete davit system may include the arm, mast, socket, base, winch, fall arrest block, retrieval device, fixings and supporting structure.

This distinction matters because inspection and compliance do not stop at the visible arm. The socket, fixings, base and structure behind the system also need to be suitable for the intended use.

A davit arm may look fine, but the overall system can still be unsuitable if the socket is damaged, the fixings are unknown, the structure has not been verified, or the wrong equipment has been connected to it.

What Is a Davit Arm Used For?

Davit arms are used wherever a safe overhead anchor point is needed.

Common applications include:

• Confined space entry and rescue
• Manhole access
• Water treatment facilities
• Pumping stations
• Industrial tanks and vessels
• Rooftop access systems
• Facade maintenance and rope access
• Equipment lifting and retrieval operations

Many organisations use davit systems because they provide a safer and more practical solution than larger lifting equipment in restricted areas.

Types of Davit Arms

There are several different types of davit arm systems.

Fixed Davit Arms

Fixed systems are permanently installed into a structure using a dedicated base or socket. They are often used at locations where access is required regularly.

Portable Davit Arms

Portable systems can be moved between different locations. This makes them popular on sites with multiple access points.

Counterweight Davit Systems

These systems use counterweights instead of permanent fixings and are commonly used where drilling into the structure is not practical.

Roof Davit Systems

Roof-mounted davits are frequently used for facade access, maintenance and rope access activities on commercial buildings.

The best option depends on the access point, rescue plan, supporting structure, required reach, intended load and whether the system needs to move between locations.

How Do You Choose the Right Davit Arm?

The right davit arm depends on the task, site layout and type of load being supported.

Before choosing a system, consider:

• Whether the davit will be used for personnel, materials, rescue or a combination of uses
• Whether the system needs to be fixed, portable or counterweighted
• The available space around the access point
• The required reach over the opening or edge
• The supporting structure and fixing method
• Whether multiple sockets or bases are needed across the site
• Which winches, fall arrest blocks or retrieval devices need to be compatible

This is why davit systems should be selected around the actual task, not just the headline load rating.

What Is a Davit Socket?

A davit socket is the fixed mounting point that accepts the davit arm.

While the davit arm itself may be removable, the socket remains permanently installed.

This offers several advantages:

• One davit arm can serve multiple locations
• Equipment is easier to transport and store
• The arm can be removed when not in use
• The fixed socket can be inspected as part of the wider system

Davit sockets are commonly found on water treatment sites, pumping stations, rooftops and industrial facilities.

Why Do Davit Arms Need Inspection?

Like any safety-critical access system, davit arms require inspection and maintenance.

Inspection helps identify:

• Corrosion
• Mechanical wear
• Damaged components
• Loose fixings
• Socket deterioration
• Missing documentation
• Previous unauthorised modifications

A davit arm can appear to be in good condition while still having issues that affect compliance or safety.

This is why many organisations arrange regular davit arm inspection, maintenance and pull testing by a competent provider.

Why Are Davit Arms Pull Tested?

Pull testing helps verify that the system and its supporting structure can withstand the required loads.

The test is used to confirm that:

• The installation remains secure
• The fixing arrangement is suitable
• The supporting structure remains adequate
• The system can continue to be used safely

Depending on the installation, pull testing may be required during initial installation, after remedial works or as part of ongoing compliance management.

Many organisations wrongly assume a visual inspection alone is sufficient.

In reality, the structural integrity of the installation is often one of the most important elements of the entire system.

What Standards Apply to Davit Arms?

The exact standards that apply will depend on the type of davit system and how it is being used.

Commonly referenced standards include:

• BS 7883
• BS 8610
• EN 795
• Manufacturer-specific guidance
• Work at Height Regulations 2005

Compliance is not just about the davit arm itself. The socket, fixings, structure, inspection regime and intended use all need to work together safely.

What Records Should Be Kept for a Davit Arm?

Davit systems should have clear records that show how the system was installed, inspected and maintained.

Useful records may include:

• System design information
• Manufacturer instructions
• Installation records
• Fixing and socket details
• Load ratings and intended use
• Previous inspection reports
• Pull test records
• Details of repairs or modifications

These records matter because an inspector may need to verify more than the visible condition of the arm. If the technical information behind the system is missing, the davit may be difficult to recertify even if it appears to be in good condition.

What Happens If a Davit Arm Fails Inspection?

A failed inspection does not automatically mean the system must be removed permanently.

Common issues include:

• Missing technical files
• Corrosion
• Damaged components
• Unknown fixing arrangements
• Missing inspection records
• Lack of evidence supporting the original installation

In many cases, additional investigation, remedial work or pull testing may allow the system to be brought back into compliance.

For a more detailed guide, see: Has Your Davit Arm Failed Inspection?

FAQs

Here are answers to some of the most common questions about davit arms, davit sockets, inspection requirements and pull testing.

What is the purpose of a davit arm?

A davit arm provides a secure overhead anchor point for lifting, lowering, rescue, retrieval and fall protection activities.

What is a davit arm used for?

Davit arms are commonly used for confined space entry, rescue operations, rooftop access, industrial maintenance and lifting applications.

What is a davit socket?

A davit socket is the fixed mounting point that accepts a removable davit arm. It allows one davit arm to be used at multiple locations.

How often should a davit arm be inspected?

Inspection frequency depends on the equipment, usage, environment and manufacturer guidance. Safety-critical systems should be inspected by competent persons at suitable intervals.

Why are davit arms pull tested?

Pull testing helps verify that the installation, fixings and supporting structure remain capable of safely supporting the required loads.

Can davit arms be used for confined space rescue?

Yes. Davit arms are widely used with rescue winches, retrieval systems and fall arrest devices for confined space entry and rescue operations.

Is a davit arm the same as a davit system?

Not exactly. The davit arm is one component of the full system. A davit system may also include the mast, socket, base, winch, fall arrest block, retrieval device, fixings and supporting structure.

Can one davit arm be used with multiple sockets?

Yes, in many systems one removable davit arm can be used with multiple compatible sockets or bases across a site. Each socket still needs to be suitable, installed correctly and inspected as part of the system.

What is a davit in construction?

In construction, a davit is a lifting or anchorage system used to support safe access, rescue, retrieval or lifting at openings, edges, excavations, shafts and confined spaces. Davit arms are often used where larger lifting equipment is impractical or where a secure overhead anchor point is needed.

Can Velocity Safety inspect and pull test davit arms?

Yes. Velocity Safety provides davit arm inspection, maintenance, installation support and pull testing services throughout the UK.

Resources

• HSE: Confined Spaces Guidance
• HSE: Working at Height Guidance
• Davit Arm Installation & Pull Testing
• Has Your Davit Arm Failed Inspection?

A failed inspection does not always mean your fall arrest equipment has to be replaced. Sometimes the bigger problem is whether anyone can legally repair, service or recertify it.

When fall arrest equipment fails inspection, most people assume the next step is straightforward.

Replace a damaged part, carry out a service, get it recertified and put it back into use.

Unfortunately, that is not always possible.

We regularly come across equipment that cannot be repaired, serviced or recertified because spare parts are unavailable, manufacturer support no longer exists, or there is no approved servicing route available.

In some cases, businesses save money when buying equipment, only to discover years later that a relatively minor defect has turned the entire unit into an expensive replacement rather than a straightforward repair.

Here’s what this guide covers:

What Happens When Fall Arrest Equipment Fails Inspection?

When fall arrest equipment fails inspection, it should normally be removed from service immediately until its condition can be properly assessed.

Depending on the type of equipment and the defect identified, there may be several possible outcomes:

• The defect can be repaired and the equipment recertified.
• A component can be replaced through an approved service centre.
• The manufacturer may require factory servicing.
• The equipment may need to be permanently withdrawn from use.

The outcome often depends less on the defect itself and more on whether the manufacturer supports repair and recertification.

A worn component is not always the end of the equipment’s life. Lack of support, documentation or spare parts often is.

Why Can Some Fall Arrest Products Not Be Repaired?

There are several reasons why fall arrest equipment may not be repairable.

Common examples include:

• Spare parts are no longer available.
• The manufacturer has discontinued the product.
• No approved repair centre exists.
• Technical documentation is unavailable.
• The manufacturer does not permit third-party repairs.
• The equipment has exceeded its service life.
• The damage affects critical safety components.

In these situations, even a relatively minor defect can result in the equipment being condemned because there is no approved method of restoring it to a certifiable condition.

Repairable vs Non-Repairable Fall Arrest Equipment

Not every item of fall arrest equipment should be treated the same way.

Textile-based equipment such as harnesses and lanyards is often replaced rather than repaired when serious defects are found. Cuts, damaged stitching, deployed energy absorbers, chemical contamination, missing labels or expired service life can all mean the item has to be withdrawn from use.

Mechanical equipment such as fall arrest blocks and inertia reels may be serviceable, but only when the manufacturer allows it and approved parts, procedures and competent servicing support are available.

As a broad guide:

• Harnesses and webbing lanyards: usually replaced if serious defects, missing labels or deployed shock absorbers are found.
• Fall arrest blocks and inertia reels: may be serviceable if supported by the manufacturer and inspected by an approved provider.
• Anchor devices and fixed systems: may require inspection, testing, documentation review or remedial works depending on the issue.

This distinction matters because “failed inspection” does not always lead to the same outcome. Some equipment is designed to be replaced. Some can be serviced. Some could be repaired in theory but cannot be recertified because the support route is missing.

Why Manufacturer Support Matters

One of the most overlooked questions when buying fall arrest equipment is:

“Who will service this in five years?”

Many buyers focus entirely on the purchase price.

The long-term support network is often ignored.

Before buying any fall arrest equipment, it is worth understanding:

• Whether approved service centres exist in the UK.
• Whether spare parts are available.
• How servicing and recertification are carried out.
• How long the manufacturer supports the product.
• What happens if a critical component fails inspection.

The answers to these questions often determine the true lifetime cost of ownership.

Questions to Ask Before Buying Fall Arrest Equipment

If you are comparing products, ask these questions before making a decision:

• Can the equipment be serviced in the UK?
• Are spare parts readily available?
• Is there an approved repair network?
• Will the manufacturer still support the product in the future?
• Can the equipment be recertified after inspection?
• Who carries out warranty repairs?
• What happens if the equipment fails inspection?

These questions are often more important than a small difference in purchase price.

The Hidden Cost of Cheap Fall Arrest Equipment

The cheapest option at purchase is not always the cheapest option over the life of the equipment.

We have seen situations where businesses purchased equipment because the initial cost looked attractive, only to discover later that servicing support was limited, spare parts could not be sourced, or recertification was not possible.

A relatively small saving at the point of purchase can become a much larger replacement cost if equipment cannot be repaired when defects are identified.

This is why many organisations now consider:

• Inspection requirements
• Servicing support
• Repair availability
• Recertification routes
• Manufacturer backing

alongside the initial purchase price.

Can Fall Arrest Blocks Be Serviced?

Many fall arrest blocks, inertia reels and other PFPE products can be serviced and recertified when supported by approved manufacturers and service centres.

However, not every product on the market offers this option.

Before assuming a fall arrest block can be repaired, it is important to confirm:

• Whether servicing is permitted.
• Whether approved spare parts exist.
• Whether inspection failures can be rectified.
• Whether recertification is available after repair.

Velocity Safety provides fall arrest block and inertia reel servicing, PFPE inspections and fall arrest anchor inspection and testing for supported equipment and systems.

What Should You Do If Your Equipment Has Failed Inspection?

If fall arrest equipment has failed inspection, avoid assuming replacement is the only option.

Start by gathering:

• The inspection report.
• Manufacturer details.
• Model and serial numbers.
• Previous servicing records.
• Any available technical documentation.

A competent provider can then determine whether the equipment can be repaired, serviced, recertified or whether replacement is the safest option.

FAQs

Here are answers to some of the most common questions we hear from businesses whose fall arrest equipment has failed inspection, cannot be repaired, or is no longer supported by the original manufacturer.

Does a failed inspection automatically mean fall arrest equipment must be replaced?

Not always. Some defects can be repaired or rectified through approved servicing routes. The outcome depends on the type of equipment, the defect and the availability of manufacturer support.

Can fall arrest blocks be repaired?

Many can, provided approved spare parts and servicing support are available. However, some products cannot be repaired or recertified once defects are identified.

Why can’t some fall arrest equipment be serviced?

Common reasons include discontinued products, lack of spare parts, no approved repair centres, missing technical documentation or manufacturer restrictions on repairs.

How often should fall arrest equipment be inspected?

Inspection frequency depends on the equipment type, manufacturer guidance and working environment. Employers should ensure inspections are carried out by competent persons in accordance with relevant requirements.

What should I check before buying fall arrest equipment?

Check servicing availability, spare parts support, repair options, recertification routes, manufacturer backing and long-term support arrangements, not just the purchase price.

What fall arrest equipment should be removed from service?

Fall arrest equipment should be removed from service if it has arrested a fall, failed inspection, has damaged webbing or stitching, deployed shock absorbers, corrosion, missing labels, expired service life or any defect that could affect safe performance. A competent person should assess whether it can be repaired, serviced, recertified or permanently withdrawn.

Can Velocity Safety inspect and service fall arrest equipment?

Yes. Velocity Safety provides PFPE inspections, fall arrest block servicing and support for approved working-at-height equipment across the UK.

Resources

• HSE: Working at Height Guidance
• Work at Height Regulations 2005
• Fall Arrest Anchor Inspection & Testing
• Fall Arrest Block & Inertia Reel Servicing
• PFPE Inspections

Your LEV system can have a recent inspection report and still not be working properly on site.

If your Local Exhaust Ventilation system has a recent inspection report, it is easy to assume the system is still controlling dust or fumes properly.

But an LEV inspection and LEV maintenance are not the same thing.

A Thorough Examination and Test, often called a TExT, checks whether your system is performing as required. Maintenance is the practical work that keeps the system working day to day, such as replacing filters, clearing blockages, cleaning filter housings, checking airflow indicators and repairing damaged parts.

This difference matters because an inspection report may identify a problem without fixing it.

In some cases, an LEV system can be inspected, technically passed or conditionally accepted, and still have practical performance issues that need attention before workers are properly protected.

Here’s what this guide covers:

What Is an LEV Inspection?

An LEV inspection is usually referred to as a Thorough Examination and Test, or TExT.

Under COSHH, employers must make sure Local Exhaust Ventilation systems are properly maintained and thoroughly examined at suitable intervals. For most LEV systems, this means at least once every 14 months.

An LEV Thorough Examination and Test is designed to check whether the system is still performing as intended and helping to control worker exposure to hazardous dust, fumes, vapours or other airborne contaminants.

An LEV inspection may include:

• Visual checks of hoods, ducting, filters, fans and discharge points
• Airflow measurements
• Comparison against intended operating performance
• Assessment of capture effectiveness
• Checks of alarms, gauges or airflow indicators where fitted
• Identification of defects or performance issues
• A written report with findings and recommendations

The inspection tells you whether the system is performing properly. It does not automatically mean the examiner will carry out maintenance or repairs during the same visit.

What Is LEV Maintenance?

LEV maintenance is the practical work needed to keep the extraction system in efficient working order.

This can include planned servicing, routine checks, cleaning and remedial work.

LEV maintenance may include:

• Replacing filter bags or cartridges
• Clearing blockages from ducting
• Cleaning filter housings
• Checking fan belts, seals and connections
• Repairing damaged ductwork or hoods
• Checking airflow indicators
• Fitting airflow chevrons or other visual indicators
• Recording routine checks between formal examinations

Maintenance is what helps prevent the system from drifting away from its intended performance between formal examinations.

LEV Inspection vs LEV Maintenance: Quick Comparison

Area	LEV Inspection / TExT	LEV Maintenance
Main purpose	Checks whether the system is adequately controlling exposure	Keeps the system working properly day to day
Typical frequency	Usually at least every 14 months	Ongoing, based on system use, dust loading and risk
Output	Report, findings, pass/fail status and recommendations	Repairs, cleaning, filter changes, adjustments or servicing
Main risk if missed	Non-compliance and unknown exposure control performance	Reduced airflow, blockages, failed filters and poor extraction

The two activities support each other. A well-maintained system is more likely to pass its examination. A good examination should help identify where maintenance or remedial work is needed.

Can an LEV System Pass Inspection But Still Need Work?

Yes. An LEV system can have a recent inspection and still need practical attention.

This can happen where the inspection identifies a performance issue but does not include remedial work, or where the system deteriorates after the inspection due to dust loading, damaged filters, blocked ducts or changes in how the system is used.

We have attended sites where workers reported that the LEV system was not extracting as well as it used to. On further investigation, the issue was not complicated. The system needed practical maintenance: blockage clearance, filter bag replacement, cleaning and simple visual airflow indicators so the site team could spot future issues earlier.

That is where compliance can fall down: the report exists, but the fault remains.

A report can tell you what is wrong. Maintenance fixes the problem.

Will an Insurance Inspector Maintain My LEV System?

Not usually.

Some insurance or engineering inspection providers will carry out statutory examinations and identify defects, but they may not carry out practical maintenance such as replacing filters, clearing blockages, cleaning housings or fitting airflow indicators.

That can leave employers with a report in hand but a system that still needs work.

You are also not automatically required to use your insurer for statutory examinations. The key requirement is that the person carrying out the work is competent.

If your LEV report mentions poor airflow, blocked ducting, damaged filters, missing indicators or required remedial action, you still need to make sure those issues are dealt with.

Why Airflow Indicators Matter

One of the main reasons LEV systems stop controlling exposure properly is reduced airflow.

That can be caused by:

• Blocked filters
• Dust build-up in ducting
• Damaged hoses or ductwork
• Poorly seated filter bags
• Fan or motor issues
• Changes to the process or hood position

A simple airflow indicator can help supervisors and operators spot when airflow has dropped before the next formal examination.

Airflow indicators do not replace maintenance or a Thorough Examination and Test, but they can make performance issues easier to identify during normal use.

What Should You Do If Your LEV Is Not Extracting Properly?

If workers are reporting poor extraction, visible dust, fumes escaping, unusual noises or weak airflow, do not ignore it just because the system has been inspected recently.

Start by checking:

• Whether the latest LEV report lists defects or recommendations
• Whether filters are blocked, damaged or overdue replacement
• Whether ducts, hoses or hoods are damaged or blocked
• Whether airflow indicators are fitted and showing adequate flow
• Whether the process has changed since the last examination
• Whether users have been trained to carry out basic checks

If there is any doubt, arrange for a competent LEV provider to inspect the system and advise whether maintenance, remedial work or re-testing is required.

Velocity Safety provides LEV Thorough Examination and Testing, practical defect reporting and support with remedial actions for dust and fume extraction systems across the UK.

For wider testing interval guidance, see our guide: How Often Should LEV Be Tested?

What Information Should You Gather Before Calling an LEV Provider?

Before asking for help, it is useful to gather:

• Your latest LEV Thorough Examination and Test report
• Any notes on defects, reduced airflow or remedial actions
• Photos of the extraction unit, filters, hoods and ducting
• Details of the process being controlled
• Details of the dust, fume or contaminant being extracted
• Any recent maintenance records or filter changes

This helps a competent provider understand whether the issue is likely to need maintenance, remedial work, re-testing or a wider review of the system.

FAQs

Here are answers to common questions about LEV inspections, maintenance, insurance inspections, airflow indicators and COSHH compliance.

Is LEV inspection the same as LEV maintenance?

No. LEV inspection checks whether the system is performing as intended and controlling exposure. LEV maintenance is the practical upkeep needed to keep the system working properly, such as filter replacement, cleaning, blockage clearance and repairs.

How often should LEV be inspected?

Most LEV systems should be thoroughly examined and tested at least every 14 months. Some processes may need more frequent examination depending on the risk, use and substances involved.

Does an LEV inspection include filter replacement?

Not always. Some inspection providers will identify filter issues but will not replace filters or carry out maintenance during the inspection. You should check what is included before booking the work.

Can an LEV system pass inspection but still need maintenance?

Yes. A system may still need cleaning, filter changes, blockage clearance or airflow improvements even after an inspection. The inspection report should be reviewed carefully and any recommendations should be acted on.

Do insurance inspectors repair LEV systems?

Usually not. Insurance or engineering inspectors may carry out examinations and report on defects, but they may not complete practical maintenance, repairs or remedial work. Employers still need to ensure any issues are resolved.

Are airflow indicators legally required on LEV systems?

Airflow indicators are not always a specific legal requirement, but employers must have a way to check that LEV performance is being maintained. Airflow indicators are a practical way to help operators and supervisors spot reduced airflow.

What should I do if workers say the LEV is not extracting properly?

Check the latest inspection report, filters, ducting, hoods, airflow indicators and any recent process changes. If the problem is not obvious, ask a competent LEV provider to inspect the system and advise what remedial work is needed.

What should be included in an LEV inspection checklist?

An LEV inspection checklist should usually cover hoods, ducts, filters, fans, discharge points, airflow measurements, intended operating performance, defects, recommendations and whether the system is adequately controlling exposure. The exact checklist depends on the type of LEV system and the process being controlled.

Can Velocity Safety help with LEV inspection and maintenance issues?

Yes. Velocity Safety provides LEV Thorough Examination and Testing, airflow checks, defect reporting and practical advice for dust and fume extraction systems across the UK.

Resources

• HSE: LEV frequently asked questions
• HSE: HSG258 Controlling airborne contaminants at work
• Legislation.gov.uk: COSHH Regulation 9
• Velocity Safety: LEV Thorough Examination and Testing