LEV Testing Services in the UK

At Nederman, we offer professional Local Exhaust Ventilation (LEV) Testing services across the UK, ensuring your equipment meets COSHH regulations and HSE HSG258 guidelines. With our network of highly qualified and experienced LEV test engineers, you can ensure your equipment meets all legal requirements for controlling hazardous substances in the workplace.

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What is LEV Testing?

Local Exhaust Ventilation (LEV) testing is a mandatory examination required under the Control of Substances Hazardous to Health (COSHH) Regulations. The Health and Safety Executive (HSE) requires LEV systems to be thoroughly examined and tested at least every 14 months to ensure they continue to effectively control airborne dust, fumes, vapours, or other hazardous substances.

New LEV Equipment and Changes

LEV testing should be carried out on first install along with commissioning, and within the maximum term forever after. Testing should also be undertaken when there is a change to the equipment, including filter or location changes. Any changes means that it needs to be re-certified as fit for purpose, and keeps your operators safe from harmful dust or fumes.

Ensure your system meets COSHH requirements

What Happens During an LEV Test

Our dedicated team of LEV engineers provides thorough testing and inspection of all types of LEV systems, regardless of design or manufacturer. We follow the strict guidelines outlined in the Health & Safety Executive’s HSG258 to ensure complete compliance and provide you with the certification you need.

Our LEV Testing Service includes:

1. Visual Examination
   Inspecting the LEV system to ensure it's in good working order, well-maintained, and clean.
2. Performance Measurements
   Verifying the technical performance of your system, ensuring it matches original design specifications or other relevant benchmarks.
3. Exposure Control Assessment
   Assessing whether the system is adequately controlling worker exposure to hazardous substances.

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Industries That Require LEV Testing

LEV systems are essential wherever dust, fumes, or airborne contaminants must be controlled. Nederman provides LEV testing across a wide range of industries, helping ensure compliance with COSHH regulations and protecting your workforce.

We commonly carry out LEV testing for:

• Welding and Metal Fabrication – Ensures fume extraction systems effectively remove hazardous welding fumes and metal dust.
• Woodworking and Furniture Manufacturing – Verifies dust extraction systems reduce wood dust exposure and mitigate fire/explosion risks.
• Pharmaceutical and Chemical Production – Confirms containment systems control potent compounds and maintain safe air quality.
• Food Processing Facilities – Checks extraction systems for airborne powders, dust, and vapours to maintain hygiene and safety.
• Laboratories and Research Facilities – Ensures fume cupboards and extraction systems protect staff from chemical exposure.
• Manufacturing and Engineering Workshops – Maintains efficient extraction of dust, fumes, and other airborne contaminants across production processes.

If your industry is one of the above, Nederman’s certified engineers can ensure your LEV system remains compliant and safe.

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Why is LEV Testing Important?

In the UK, the Control of Substances Hazardous to Health (COSHH) Regulations 2002 mandates regular testing and thorough examination of LEV systems at least every 14 months, and more frequently for certain equipment (e.g. shot blasting units, grinding extracts). LEV Testing is essential to protect workers from harmful airborne contaminants and to ensure your ventilation systems are functioning properly. 

Our LEV Testing Services

Our team of experienced engineers is regionally based across the UK, allowing us to offer nationwide LEV testing coverage. Whether you operate a large industrial facility or a small workshop, we provide tailored testing services that meet your specific needs.

Why Choose Nederman for LEV Testing?

• Certified Engineers: Our engineers are fully trained and certified to carry out LEV Testing to the highest standards.
• Nationwide Service: We provide UK-wide coverage, offering local expertise wherever you are.
• Comprehensive Reporting: Our reports cover every aspect of LEV system performance, giving you a clear roadmap to compliance.

Fast and Reliable Service: We understand the importance of keeping your operations running smoothly, and our team is committed to delivering efficient, thorough service.

Digital LEV Test Reporting with the Service Connect App

To make LEV testing faster, clearer, and more reliable, Nederman engineers use the Nederman Service Connect App during inspections and servicing. The app allows engineers to record system data, testing results, and compliance information directly on site, ensuring that information is captured accurately and stored securely.

Once an LEV test is completed, reports are generated digitally and delivered straight to your inbox, providing both a clear summary and a detailed technical breakdown where required. By consolidating service records, certifications, maintenance history, and testing schedules into one connected system, the Service Connect App helps ensure your extraction systems remain compliant, well-maintained, and fully documented.

LEV Testing Reports and Certification

After every LEV test, we provide a detailed report for each piece of equipment tested, in line with HSG258 guidance. Your certification report will include:

• The name and address of the employer responsible for the LEV system.
• The date of the examination and test, including the date of the last inspection.
• Identification and location of the LEV system, along with details about the process and hazardous substances.
• Operating conditions during the test (normal production or special conditions).
• A simple diagram of the LEV layout with test points for easy reference.
• Photographs and serial numbers for key components, documenting system condition.
• Performance data and any necessary corrective actions to ensure safe operation.
• Results of any air sampling or dust lamp tests related to LEV performance.
• Recommendations for maintenance, repair, or system adjustments before the next scheduled test.

Our engineers also provide a signature to certify the report, ensuring it meets all legal requirements.

Ensure your extraction systems remain compliant with COSHH regulations and operating safely.

Schedule your LEV test with Nederman

FAQs

• How often should LEV systems be tested?

  • LEV systems should be tested every 14 months or less depending on circumstances.

• Is LEV testing a legal requirement?

  • LEV testing is a legal requirement in the UK under COSHH regulations and regulated by the HSE.

• Who can carry out LEV testing?

  • Only technicians holding a BOHS P601 qualification (Thorough Examination and Testing of Local Exhaust Ventilation) can carry out LEV tests.

• How long does LEV testing take?

  • Between 1 and 3 hours for standard, single systems. Larger systems can take up to 6 hours or longer. There are various factors which determine the length of time required.

• What happens if an LEV system fails inspection?

  • In the event of a failure, the system must be taken out of service, repaired, and retested.

• What happens if I don’t carry out regular LEV inspections on my extraction system?

  • If you are found to be operating a system that is not certified compliant, you could face fines, legal costs, and business interruptions. Not to mention risking the long-term health of your employees.