According to the HSE, only 40% of installed LEVs are tested annually as required by COSHH Regulation 9 and worryingly there appear to be a large number of schools which have poorly functioning LEVs. According to the HSE, an LEV system that is poorly installed, ineffective or loses its effectiveness through lack of maintenance – leads directly to industrial disease.
Suppliers often fail to provide adequate guidance to their customers. An easy way of showing if the LEV is working properly is to check airflow indicators which ideally should be installed at each extraction hood.
If there are problems with an LEV, there are a number of ways to restore its effectiveness. For example, by replacing components such as the filter, clearing any blockage or simply closing some extraction points if too many are open. This should be carried out as soon as possible after the fault has been recognised.
Click here to find out if you’re legally compliant using our LEV compliance checker.
Health & safety law says you must assess the risks to your workers from hazardous substances – dusts, fumes, vapours – and decide what measures to use to protect their health. It goes on to say that employers have a legal responsibility to ensure that employee exposure to dust/fumes etc is minimised and well controlled.