MCG Environmental Engineering Ltd

Introduction to LEV

All Local Exhaust Ventilation (LEV) systems require a Thorough Examination and Test (TExT) at least once in every 14 month period, or more frequently depending upon the application.

LEV systems must be monitored and maintained to ensure that they are in good working order. This includes systems that removed airborne dust, fumes and vapours. This requirement is prescribed in the "Health and Safety at Work Act" 1974 and in Regulation 9 of the "Control of Substances Hazardous to Health" (COSHH) regulations.

When correctly designed LEV systems protect their users from hazardous processes, by controlling process dust, fumes and vapours. These systems must be checked by a qualified engineer who holds a recognised qualification. The recognised qualification needed for LEV testing/COSHH testing systems is the BOHS P601 – Thorough Examination and Testing of Local Exhaust Ventilation systems.

Further guidance and information on LEV can be found on the HSE website of in the HSE Guidance HSG258 – Controlling Airborne Contaminants at Work: A guide to local exhaust ventilation.

Chapter two in HSG258 outlines the roles and responsibilities for LEV systems, from the system user, to the LEV Service provider who provides the statutory LEV testing (TExT) inspection.

At MCG we are fully qualified with over 20 years of experience in LEV/COSHH testing. Contact us on 01327 209638 to discuss your requirements or send us an email below.

System Commissioning

All new and existing LEV installations require a commissioning report to be issued, which can be used as a benchmark for subsequent future tests. All systems require this mandatory documentation from a large centralised dust control system to a single mobile weld fume control unit.

HSG258 outlines the requirements for commissioning reports and the required competency of the commissioning engineer. The P601 qualification held by engineers who undertake Routine LEV testing (TExT) alone is not a demonstration of sufficient competence to undertake commissioning of LEV systems.

need more information? give us a call on 01327 209638

Our commissioning engineers hold the P602 – Basic Design principles of Local Exhaust ventilation Systems, along with the advance proficiency certificate P604 – Performance Evaluation and Management of Local Exhaust Ventilation Systems (LEV).

The HSE has produced simple guidance leaflet to help customers choose a supplier of LEV equipment or LEV service provider. Click the image to the left to read the guidance.