COSHH LEV Testing: Keeping Your Workplace Safe and Compliant
- Jake Elliott
- Sep 8
- 2 min read
Controlling exposure to hazardous dust, fumes, and vapours is a legal requirement under the Control of Substances Hazardous to Health (COSHH) Regulations 2002. These airborne contaminants can cause long-term respiratory issues, skin problems, and other serious health conditions, but the good news is, effective Local Exhaust Ventilation (LEV) systems can keep your employees safe and your business compliant.
At Ductbusters, we provide comprehensive LEV testing, inspection, and maintenance services, ensuring that your systems are working efficiently, effectively, and in line with HSE guidance HSG258: “Controlling airborne contaminants at work.”

What Happens During an LEV Test?
Our qualified engineers carry out a thorough examination and test of your existing LEV system, including:
Hoods and capture devices – ensuring they effectively contain and extract contaminants.
Ducting and filters – checking for leaks, blockages, and degradation.
Fans, airflows, and discharge points – measuring performance against design specifications.
We measure the technical performance of each component, assess the overall effectiveness of the system, and identify any areas for improvement. Our priority is always to keep your workforce and building safe, while helping you save money through preventative maintenance and efficient operation.
What If My System Fails the Test?
If your current LEV system isn’t performing to the required standard, we’ll provide clear, cost-effective recommendations to bring it up to compliance.
Because we specialise not only in testing, but also in maintenance, repair, and new installations, you can rely on us to take care of the entire process, from identifying problems to implementing the right solutions.
All our work is carried out in accordance with HSE guidance and COSHH Regulation 9, which states that LEV systems must be thoroughly examined and tested at least once every 14 months (or more frequently where high-risk substances are present).
Why Regular LEV Testing Matters
A well-maintained LEV system doesn’t just keep your business compliant, it keeps your people healthy. By capturing and controlling harmful pollutants at their source, you protect your employees from exposure to hazardous dust, fumes, vapours, and other airborne contaminants.
Poorly maintained or underperforming LEV systems can lead to:
Increased exposure risks for workers
Equipment damage or reduced efficiency
Non-compliance with HSE and COSHH regulations
Potential legal and financial consequences
Protect Your People — and Your Business
At Ductbusters, we make sure your LEV systems are doing exactly what they should: controlling and reducing exposure to harmful airborne substances effectively.
If you’re ready to make your workplace safer and ensure full compliance with COSHH, get in touch today. Our specialists are here to test, maintain, and support your LEV systems with the expertise and care you can trust.

