What is local exhaust and ventilation (LEV)?
A Local Exhaust Ventilation (LEV) system is used to reduce and control airborne hazardous substances to health from within a workplace environment, such as dust, mist, fume, vapour or gas.
Why do you need LEV testing?
The Health and Safety at Work acts 1974 and regulation 9 of the Control of Substances Hazardous to Health state Regulation 9 requires that the employer shall ensure that any relevant LEV plants are maintained to a sufficient standard to ensure that the correct performance is maintained at all times. Regulation 9 (2A) states when engineering controls are provided to meet the requirements of regulation 7, the employer shall ensure that a thorough examination and test of the controls are carried out. The testing should be at least 14 monthly or more frequently depending on the substances being controlled.
All inspection and maintenance records must be kept for 5 years on the premises.
What Does An LEV Test Consists Of?
System performance data will be obtained on static pressure, transport and face velocities, capture design and practical use.
The other important part of the LEV Test is a qualitative assessment on the control of potential contaminants by smoke testing. Measurements obtained are compared with the available original Local Exhaust Ventilation specification and the relevant performance criteria given in HS(G)258.
In addition to examining and testing the LEV, Rayalon Filter Services UK Ltd provides an in depth report as specified in HS(G)258 ‘Controlling Airborne Contaminants at Work. The report will provide evidence in fulfilling the requirements of Regulation 9 of COSHH guidance. Our reports will also assist you in improving these control measures where necessary.