Local Exhaust Ventilation Testing
LEV systems protect workers from airborne contaminants at source. Under COSHH Regulation 9, employers must ensure LEV systems are examined and tested at least every 14 months. We provide thorough examination and testing in compliance with HSG258 guidance.
What Is LEV Testing?
Local Exhaust Ventilation (LEV) captures airborne contaminants — dust, fumes, vapour, mist — at or near the source before they reach the worker's breathing zone. Regular testing ensures the system continues to provide adequate control.
Our LEV Service Includes
- Thorough examination of the complete LEV system
- Airflow velocity and volume measurements at capture points
- Assessment of hoods, ducting, filters, and discharge points
- Comparison against design performance criteria
- Statutory compliance report with findings and recommendations
- Guidance on maintenance and operator checks
Statutory Requirements
COSHH Regulation 9 requires LEV systems to be thoroughly examined and tested by a competent person at intervals not exceeding 14 months (or 6 months for certain processes). Failure to comply is a criminal offence enforceable by the HSE.
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