GKS Environmental
Occupational Hygiene Consultants
Services in London & Throughout The UK

The most important part of an extraction system is where it interacts with the operative. If the intake is unsuitable or for some reason is not used due to the design so will the ducting, fans filters etc. The most expensive part of the system is likely to be the ductwork, filters and fans.

How we can help

Local Exhaust Ventilation System Regulation 9 of the COSHH regulations requires that Local Exhaust Ventilation (LEV) systems be examined at least every 14 months. In some process such as blasting and non-ferrous metal grinding there is a requirement for more frequent testing.

We will look at the design of intakes, filters, ducting, filter cleaning mechanisms and the management of maintenance within the company.

It is not uncommon for a company to purchase an expensive system that does not do what is needed. HS(G)258 outlines the duties of the employee, suppliers and the designers of ventilation system. We can form part of that team in outlining what system will be likely to reduce the exposure to a substance to a satisfactory level.

Once a system is in place, we can carry out an initial testing programme to ensure it is meeting design criteria. We can also carry out the annual thorough examination and testing and compare those results with the commissioning data.

All of our LEV testing equipment is calibrated annually so that you can have complete confidence in our results.

More information

The Health & Safety Executive guidance for testing is outlined in the HSE guidance note HS(G)258 which can be found at https://www.hse.gov.uk/LEV/