In this article, we answer your questions on LEV Systems and explore their uses, legal requirements, LEV test requirements and what to do if an LEV system fails.

What is an LEV System?

An LEV, or Local Exhaust Ventilation system is a fume and dust extraction system that can be found within a workplace that needs to protect workers and users of a system from the release of airborne contaminants. These contaminants can include dust, fumes, vapours and gases.

It is a legal requirement to have an LEV Test?
Yes, it is a legal requirement in the UK that LEV systems are tested. Employers in the UK have a legal obligation to ensure that their LEV systems are in working order, that they are regularly maintained and tested, and meet the necessary performance standards.

How often should an LEV be tested?
As a minimum, the UK Health and safety law states that the Local Exhaust Ventilation system (LEV), needs to have an examination and test, at least every 14 months to stay compliant and in good working order.
However, depending on the use and the cleanliness of the environment and the LEV system is being used in, more frequent testing may be required.

What are the LEV regulations?
Here are some of the main guidelines and regulations that relate to Local Exhaust Ventilation systems (LEV):

  • The Health and Safety Executive (HSE) – The HSE provides guidelines and regulations to control the exposure of hazardous substances, including through the use of an LEV.
  • Control Substances Hazardous to Health (COSHH) Regulation 2002 – this regulation explains how in the workplace hazardous substances must be controlled so that they do not cause ill health. LEV units are used to control exposure to airborne contaminants.
  • Regulation 9 of COSHH – Regulation 9 is specific to the requirement that LEV’s must be maintained, in effective working order and in good repair.
  • Health and Safety at Work Act of 1974 – This Act outlines the obligation of all employers and employees to ensure a safe working environment, which includes Local Exhaust Ventilation systems (LEV).
  • HSG258 is an HSE guide on local exhaust ventilation (LEV) systems for any employers that intent to use them in their workplaces

Who can conduct an LEV test and examination?
According to the regulations LEV tests and examinations need to be completed by a ‘competent’ person. A ‘competent’ person is someone who has the necessary knowledge, skills, and experience to carry out the relevant tests.

As a business, we have been conducting LEV tests and examinations in a range of settings and all of our engineers are qualified to the relevant standards, including COSHH, P601, and BOHS, and they are all also enhanced DBS checked for school and healthcare environments.

What are the HSG258 guidelines for Local Exhaust Ventilation (LEV)?
The HSG258 guideline is an in-depth document by the Health & Safety Executive (HSE) about LEV (Local Exhaust Ventilation) systems. HSG258 outlines the different roles and legal responsibilities regarding LEV management. It also provides details and guidelines when deciding on, designing, commissioning, and testing an LEV system.

Why does my LEV need testing?
As well as ensuring that the LEV system conforms with the HSE regulations, it is important to test them to make sure they are working correctly and efficiently, taking away any harmful dust, mist, gas and/or fumes, protecting staff and users of the equipment.

Will the LEV system need to be turned off during the test?
Yes, the system will need to be shut down at some point during the LEV test, but our P601 qualified engineers will always work to make sure we minimise interruptions and downtime as much as we can.

What is reported and retained within an LEV examination test report?
Our Engineers will create a detailed LEV examination and test report, all of which are in line with the HSE Approved Code of Practice to the COSHH regulations.
The Health & Safety law requires you to keep records of the tests carried out for at least 5 years. In addition to this, information on the LEV system you have on your premises is to be kept for the life of the equipment.

What is involved in an LEV test?
During an LEV test, our qualified engineers will carry out a detailed inspection and examination of the LEV equipment. They will review flow rates, take static pressure readings, and record filter performance and air temperatures. For a more detailed overview visit our LEV testing page.

Do you need to contact us to book a re-test?
Once we have tested your system, we will contact you again once your system requires a retest. However, if you do have any issues between this time, you can call the team to book in of our engineers to assess and repair where necessary.

What if my system fails an LEV test?
When our engineers run your LEV Test, they will produce a report and mark a pass or fail on the system. If your system does fail, our engineers will highlight any remedial work that needs doing in order to repair your system and ensure you are compliant.

To find out more about LEV systems and how we can help you, call us on 01257 262683

Published On: March 22nd, 2024 / Categories: RJ Urmson Commissioning Engineers /