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COSHH is the law that requires employers to control substances that are hazardous to health. You can prevent or reduce workers exposure to hazardous substances by:


  • finding out what the health hazards are;

  • deciding how to prevent harm to health (risk assessment);

  • providing control measures to reduce harm to health;

  • making sure they are used ; 

  • keeping all control measures in good working order; 

  • providing information, instruction and training for employees and others; 

  • providing monitoring and health surveillance in appropriate cases; 

  • planning for emergencies. 


Most businesses use substances, or products that are mixtures of substances. Some processes create substances. These could cause harm to employees, contractors and other people.

Regulation 9 of the Control of Substances Hazardous to Health Regulations (COSHH) and the guidance in HSG 258 states:


“The Maintenance, Examination and Testing of Local Exhaust Ventilation” states that LEV COSHH inspections must be carried out at least once in every 14 month period; more regular for some substances and processes."

For further information on HSE (Health & Safety Executive) and COSHH guidelines click here.


M & L Services carry out a full range of LEV tests to ensure the safety of you, your employees and compliance with the HSE (Health & Safety Executive) guidelines. Click here for more details.

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