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Local Exhaust Ventilation (LEV)

A properly designed, maintained and operated LEV system removes airborne contaminants such as dust, mist, gas, vapour or fumes before people breathe them in and protects workers' health.

  • Assessment

  • Measurement

  • Examination

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How it works

Every year, thousands of people in UK & Ireland die of lung disease or get asthma because of airborne contaminants they have breathed in at work.
If your workplace produces dust (e.g. flour dust in bakeries), mist (e.g. paint mist from spraying), fume (e.g. from welding), gas (e.g. carbon monoxide from furnaces or vehicles) or vapour (e.g. solvents from painting), there may be a risk to the health of your employees.

LEV 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 (close to source)

  • Make sure they are contained and taken away from people

  • Clean the air (if necessary) and remove contaminants safely