Protecting your workforce with compliant LEV solutions

Since 2000

Nationwide Design, Supply, Installation, Testing & Maintenance of fixed and portable LEV (Local Exhaust Ventilation) Systems

Protecting your workforce is at the core of what we do. Our goal is to support UK-based organisations to protect their employees with compliant and effective LEV systems.

McCarthy Environmental offer the full turnkey service, from design, supply, and installation, to regular servicing, maintenance, and testing, to ensure your systems are compliant and your operators are kept safe from harmful airborne contaminants.

  • RComplete provider for LEV solutions
  • RQuality, cost-effective solutions
  • RIndependent, impartial solutions and advice

Exclusive to MACH 2024 Attendees

Register your business for a free LEV site survey for your chance to win:


a free LEV Test

(LEV test for one system, up to three LEV points)

Terms & Conditions

1.1 The giveaway competition (“Competition”) is open to legal residents of the United Kingdom aged 18 years or over, excluding employees of McCarthy Environmental Ltd and their immediate family members.

Entry Method:
2.1 To enter the Competition, participants must register their business to accept a free LEV site survey for their business conducted by McCarthy Environmental.
2.2 Entry into the Competition is free, and no purchase is necessary.
2.3 Only one entry per business is permitted.

Prize Details:
3.1 The prize for the Competition is an ESTA Airbox unit for the winner.
3.2 There will be 5 runner-up prizes, each consisting of a free LEV (Local Exhaust Ventilation) test for one system, up to five LEV points.
3.3 Prizes are non-transferable, and no cash alternative will be offered.
3.4 The prize draw will be conducted fairly and randomly from all eligible entries received.

Entry Period:
4.1 The entry period for the Competition commences on 15th April 2024 (Start Date) and closes on 19th April 2024 (Closing Date). Entries received after the Closing Date will not be considered.

Winner Selection:
5.1 The winners will be selected within 28 days of the Closing Date.
5.2 The winners will be notified within 28 days of the Closing Date. If a winner cannot be contacted or does not claim the prize within 28 days of notification, we reserve the right to withdraw the prize from the winner and select a replacement winner.
5.3 The winner of the ESTA Airbox agrees to collect the unit or arrange for transport from McCarthy Environmental Ltd in Northamptonshire. Alternatively, McCarthy Environmental Ltd can arrange transport at cost on behalf of the winner.

6.1 By entering the Competition, participants agree to the use of their name and business details for promotional purposes related to the Competition, without any further payment or consideration.

Data Protection:
7.1 Any personal data collected during the Competition will be used solely for the purpose of administering the Competition and will not be disclosed to a third party without the entrant’s prior consent.
7.2 By entering this competition, you are consenting to be contacted regarding news and offers.

8.1 We reserve the right to cancel or amend the Competition and these Terms & Conditions without notice in the event of any unforeseen circumstances or technical reasons outside our control.
8.2 By entering the Competition, participants agree to be bound by these Terms & Conditions.
8.3 The decision of McCarthy Environmental regarding any aspect of the Competition is final and binding, and no correspondence will be entered into.
8.4 These Terms & Conditions are governed by the laws of England and Wales. Any disputes arising out of or in connection with this Competition shall be subject to the exclusive jurisdiction of the courts of England and Wales.


What is LEV?

Local Exhaust Ventilation (LEV) is equipment designed to extract airborne particulate, such as dust, fume, and oil mist, from production environments.

Why is LEV important?

LEV is an HSE requirement, as outlined in COSHH Regulations 2002 (as amended) and HSG258 guidelines.

Every employer shall ensure that the exposure of his employees to substances hazardous to health is either prevented or, where this is not reasonably practicable, adequately controlled…

COSHH Regulation 7.1

Uncontrolled contaminants can cause long-term, irreversible health conditions, or can even be carcinogenic.

What is an LEV test?

LEV testing is a legal requirement and must be carried out by a competent person at least every 14 months. Some processes, such as metal grinding, require more frequent testing.

…the employer shall ensure that thorough examination and testing of those controls is carried out… …in the case of local exhaust ventilation plant, at least once every 14 months… COSHH Regulation 9.2

LEV testing includes:

  • Thorough visual and structural examination, measuring the control effectiveness of your LEV systems.
  • Measurement of technical performance.
  • Assessment of control effectiveness.
  • The issuance of comprehensive reports and compliance labels.
Who can install LEV?

HSG258 stipulates that LEV must be installed and maintained by a ‘competent’ person. Routes to becoming professionally competent include qualifications through BOHS, CIBSE and ILEVE. McCarthy Environmental engineers are suitably qualified through BOHS through a range of courses:

  • Thorough Examination and Testing of Local Exhaust Ventilation Systems P601
  • Basic Design Principles of Local Exhaust Ventilation Systems P602
  • Performance Evaluation, Commissioning and Management of Local Exhaust Ventilation Systems P604
What LEV do I need?

The short answer is that it depends on the types of materials that are processed. Each material type will have a maximum Work Exposure Limit outlined in HSE’s EH40/2005 guidance. This will influence the type of extraction hood that can be used. Fumes or light particulate may be suited to an extraction arm, whereas a highly carcinogenic material will require a fully enclosed booth and a suitable filtration system. Our project engineers will design your LEV system, starting from the point of capture to the duct system required, the fan, and any filtration that is required. At this point we can recommend which systems and solutions will work for your application. To get started, contact us to arrange a site survey.