COSHH Regulation 9

Regulation 9 of the Control Of Substances Hazardous to Health regulations requires that measures taken to provide effective control through the use of Local Exhaust Ventilation (dust/fume extraction equipment) must be maintained in effective working order and also in good repair.

Every LEV system must be examined and tested at least once every 14 months, with certain processes requiring more regular testing. COSHH Regulation 9 specifies that test result records, including details of any repairs carried out, must be kept for a minimum of 5 years.


Compliance with Regulation 9 is a mandatory, legal requirement but can sometimes prove difficult to arrange. LEV Services can manage all test scheduling on the clients behalf to ensure that compliance with the regulations is adhered to.


It’s a popular misconception that LEV equipment is maintained, examined and tested by its original supplier. This service can be provided, far more cost effectively and efficiently, by an independent specialist who can give impartial advice on the legal requirements under COSHH.
Our testing procedure includes items specifically required by the HSE, such as velocity and pressure readings, schematic drawings and a comprehensive written report. We also indicate items of benefit that would make the working environment a cleaner and safer place. We will report any faults or problems found during the thorough examination. We supply suitable certification where equipment passes its LEV test.

LEV testing provides a true indicator as to how well plant operates and confirms whether the equipment is currently operating within the law.