Mechanical Craft Engineering

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Local Exhaust Ventilation (LEV) Testing

What is Local Exhaust Ventilation (LEV)?

  Local Exhaust Ventilation (LEV) is an engineering control system which reduces exposure to airborne contaminants in the workplace. These contaminants can include: dust, vapour, gas and fumes. The COSHH Regulations 2002 require that these systems are regularly tested to ensure they are providing an adequate control.


What sort of systems do we test?

There are many different kind of LEV system. Some examples include:

Dust extraction from machining of wood and metal

Fume Cupboards

Spray Booths

Welding Bays

Abrasive Wheels

Printing Machines

We can also test general ventilation systems such as air changes per hour in an office environment.


What does a test involve?

  When completing a LEV test on your system we collect all of the information required under Regulation 9 of the COSHH Regulations 2002. We will visit your site and collect information about your system. We will measure air velocities and take pressures at different points in your system. We will also carry out a visual test; this will take the form of either a dust lamp or smoke release test depending on the type of system. Each part of the system will be issued with a pass or fail sticker.

  We will then take all the information back to the office and write up our results. We will send you a report with all of the relevant information in it. This can be stored with your Health and Safety Records.


When should my system be tested?

  We test your system every 12 months. The COSHH Regulations require that the system is tested once in every 14 month period. Testing every 12 months makes sure we have spare time if the system was not available for any reason when it is due to be tested. We will let you know when your system is due to be tested a month in advance to arrange a time suitable for you for testing.


How much will it cost?

  The cost will vary depending on the exact nature of the system. We will provide you with a quote free of charge.


What qualifications do we have?

  Our engineer has passed the British Occupational Hygiene Societies P601 ‘Initial appraisal and thorough examination and testing of local exhaust ventilation systems’ course. This is a relatively new course and the only recognised qualification for this type of work.


What if I need repairs to my system?

  If any repairs are need for your system we can give you a free quote to carry out those repairs. If you need a new system or extension to your system we can also quote for that.