If your business uses dust extraction, fume control, or air filtration systems, you may be wondering: is LEV testing actually a legal requirement? The short answer is yes — in most workplaces across the UK, Local Exhaust Ventilation (LEV) testing is required by law.
Under the Control of Substances Hazardous to Health Regulations 2002 (COSHH), employers must ensure that any LEV system designed to control exposure to hazardous substances is thoroughly examined and tested at least every 14 months. This legal duty helps protect employees from harmful dust, fumes, vapours, and other airborne contaminants that can cause serious long-term health problems.