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Local Exhaust Ventilation (LEV)

Examination, Testing and Design

Local Exhaust Ventilation (LEV) is an engineering control designed to reduce exposure to hazardous substances in the workplace. Regulation 9 of the Control of Substances Hazardous to Health (COSHH) states that all engineering controls provided by an employer should be maintained in an efficient state, be in efficient working order and in good repair.
It further states that employers must ensure that thorough examination and testing of these controls is carried out at regular intervals (usually at least every 14 months) and suitable records are kept.
  • Hirst Consulting can assist companies in complying with the legislative requirements for thorough examination and testing
  • Testing is carried out in accordance with guidelines set out in the Health and Safety Executives Guidance HS(G)37 and HS(G) 54
  • Provision of comprehensive reports including; schematic diagrams as well as clear and concise recommendations for maintenance and modification
  • Verification of control by air monitoring using personal and static sampling
  • Assistance in the design and modification of plant to achieve improved control.
A sample LEV diagram is shown to the right. Click on diagram to enlarge.
For further details on these services, or to discuss your requirements in more detail, please contact us.