At Synergy LEV Testing, they carry out LEV Testing services throughout the whole of the UK and help their clients to comply with COSHH Regulation 9.


England, UK, 24 February 2022 — Synergy LEV Testing Consultants provide expert COSHH advice to the industry. They carry out LEV Testing services throughout the whole of the UK and help their clients to comply with COSHH Regulation 9. An LEV (Local Exhaust Ventilation) system is an engineering control designed to reduce the exposure of airborne contaminants. It moves substances away from operators working on a process, and it also prevents the introduction of hazardous substances into the workplace air. Therefore also protects operators working near to the process and the workplace.

At Synergy LEV Testing their engineers are highly qualified, committed to their chosen profession, experts in their field, and experienced in working in a wide range of industries. Whilst on-site, their engineers will adapt to an ever-changing workplace, delivering LEV testing services to the environment on the day.

Most systems, but not all, will have the following components: A Hood or Hoods, Ducting, An Air Cleaning Device, An Air Moving Device and a discharge point. Hood Classes:

  • The term Enclosures covers Full Enclosures,
  • Room Enclosures and Partial Enclosures.
  • The phrase “receptor hoods” covers
  • Receptor Hoods cover: Canopy over a Heated Process, Hoods that have a contaminant jet cloud, and Push-Pull Systems (In conjunction with a Capturing Hood).
  • Capturing Hoods: Simple moveable capturing
  • Hoods, Rim / Lip Extraction, Downdraft Tables, Air-benches, Low Volume
  • High Velocity (LVHV), and Push-Pull Systems (In conjunction with a Receiving Hood)

These hood classes apply in most cases, but sometimes hoods can work in ‘Mixed Mode’. Only when the LEV hood does not fit into any of the types should the supplier consider designing from first principles. Having the correct kind of hood for the control required is essential. The work taking place will directly affect this.

Companies use LEV systems to control and extract contaminants. Contaminants such as; Dust, Mists, Fumes, Gas, Vapours, Metal turnings and even Compost.

LEV Testing frequency should be sufficient to ensure that the system meets the performance you initially set to control hazardous substances for Regulation 7. This adequate control applies whether the LEV is static or portable. It includes microbiological safety cabinets and external high-efficiency particulate arrester (HEPA) filters. These are often fitted as part of extraction systems in laboratories and on-tool extraction systems. By following the guidance set out in HSE’s Controlling airborne contaminants at work you can ensure that the examination and testing of your LEV systems are in compliance with the requirements of regulation 9(2).

The minimum frequency of testing of most LEV systems is set in COSHH as 14 months. The bullet points below show the exceptions to this rule.

  • Blasting Processes incidental to the cleaning of metal castings in connection with their manufacture. – 1 Month minimum frequency
  • Jute cloth manufacture. – 1 Month
  • Processes, other than wet processes, in which metal articles (other than gold, platinum or iridium) are ground, abraded or polished using mechanical power in any room for more than 12 hours a week. – 6 Months minimum LEV Testing frequency
  • Processes giving off dust or fume in which non-ferrous metal castings are
  • produced. – 6 Months.

For more information on LEV Testing and Types of LEV Extraction visit and find out more about their top-quality services.

Contact Info:

Name: Synergy LEV Testing
Organization: Synergy LEV Testing
Address: England
Phone: 01782 614236