LEV (Local Exhaust Ventilation)

What is LEV?


LEV (Local Exhaust Ventilation) is an engineering control that takes dusts, mists, gases, vapour or fumes out of the air so that they can’t be breathed in.


Properly designed LEV will:


Collect the air that contains the contaminants




Make sure they are contained and taken away from people




Clean the air (if necessary) and get rid of the contaminants safely



According to the HSE, every year, thousands of people in Great Britain die of lung disease or get asthma due to breathing in airborne contaminants at their work place.


If your workplace produces any of the following there may be risk to the health of your employees



Wood, flour



e.g. paint spraying




e.g. welding




e.g. carbon monoxide from furnaces


e.g. solvents



Many employers install LEV to protect their workers health but it doesn’t always work effectively.  It is important that the right type of LEV is installed, that it is used correctly and maintained efficiently. 

Why should I bother with LEV?


The Law says you must control the risks from Hazardous Substances (the Control of Substances Hazardous to Health Regulations (COSHH).  Installing LEV may help you to do this.  

How can we help?

Our LEV TExT is carried out to the following BOHS standards:


P601 Proficiency Certificate: Thorough Examination and Certification of LEV Systems


P602 Proficiency Certificate: Design and Installation Principles of LEV Systems


P604 - Performance, Evaluation, Commissioning and Management of LEV Systems

W201 - Basic Principles in Occupational Hygiene


All new systems are designed to meet compliance with HSG258

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