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Welcome to Synergy Environmental Solutions

Securing Your Workplace with HSE-Compliant LEV Testing

UK Wide

We provide sampling and consultancy services throughout the UK and Ireland


We are happy to provide you with an obligation free estimate for work

How it works

With Synergy Environmental Solutions, Your LEV Testing is in Safe Hands

Our comprehensive LEV Testing solutions can be delivered throughout the UK, ensuring your systems are efficient and compliant with current Health and Safety standards. Our experienced engineers are committed to enhancing workplace safety, providing timely assessments and implementing effective risk-reduction strategies.

Rely on Synergy Environmental to guide you towards full LEV Testing compliance, offering peace of mind and robust protection for your workforce.

Your Complete Guide to LEV Testing in the UK

UK Health and Safety laws say you must assess the risks to your workers from hazardous substances, making periodic (at least every 14 months) examinations and testing of your LEV system mandatory. Our experts’ priority is to make sure you remain compliant while your employees stay safe.

What Is the Purpose of LEV Testing?

Like most other workplace equipment, LEV (Local Exhaust Ventilation) systems are heavily regulated to ensure ventilation systems effectively remove harmful substances from the air, protecting workers’ health in the workplace. It’s a critical part of maintaining compliance with Health and Safety regulations, specifically the Control of Substances Hazardous to Health (COSHH).

Regular LEV Testing verifies that these systems are functioning correctly, identifies any necessary repairs or adjustments and helps to prevent occupational diseases by controlling exposure to hazardous substances.

What’s Involved?

LEV Testing involves a comprehensive examination of the ventilation system to ensure it meets specific performance benchmarks.

The process includes visual inspections for wear, damage and cleanliness, as well as functional checks of airflow indicators, noise levels and alarm systems. The testing further assesses mechanical integrity, checks for leakages and evaluates environmental factors such as illumination and water quality.

Our experts will then produce a detailed report, documenting the system’s performance, any deviations from expected standards and recommendations for improvements or repairs to maintain optimal operation and compliance.

How Often Should LEV be Inspected?

LEV systems should be inspected and tested at least every 14 months to ensure they continue to operate effectively and comply with the ongoing updates to health and safety regulations.

This frequency can vary depending on the specific operations and the substances used, with some systems requiring more frequent checks.

LEV Testing

Who Can Conduct LEV Testing?

LEV Testing must be carried out by competent individuals or companies with the proper qualifications and experience.

This includes occupational hygienists and engineers who specialise in ventilation and are familiar with the specific requirements for controlling airborne contaminants. They should hold certifications such as BOHS P601-P604, which signify a comprehensive understanding of LEV systems.

While in-house maintenance staff can perform preliminary checks, it’s crucial for certified professionals to conduct the official tests to ensure the system’s compliance and efficiency in protecting workers.

Other LEV Testing FAQs

  • How Long Does LEV Testing Take? – The duration of LEV Testing varies depending on the complexity and size of the system, as well as the specific requirements of the workplace. Typically, an inspection and testing process can range from a few hours to a full day.


It’s important to schedule these tests during times that minimise disruption to business operations.

  • Will LEV Testing Affect Business Operations? – LEV Testing is designed to be minimally intrusive to business operations. The testing process is typically scheduled to minimise disruption, ensuring that it does not significantly impact your daily activities.


However, some temporary measures/adjustments may be necessary during the testing period to ensure the accuracy and thoroughness of the examination.

  • How Long Should I Keep LEV Testing Records? – Under COSHH regulations, businesses operating LEV systems must keep detailed records of all LEV tests conducted for a minimum period of five years. These records are crucial for demonstrating compliance with Health and Safety standards, facilitating regular system assessments, and ensuring that the LEV systems continue to protect worker health by effectively removing hazardous substances from the workplace environment.


Maintaining these records helps businesses track the performance and efficiency of their LEV systems over time, identifying trends or issues that may require attention.

  • How long should I keep LEV Testing records? – LEV Testing records should be retained for at least five years, as required by COSHH regulations. This period ensures compliance with health and safety standards, enabling effective monitoring and assessment of the LEV system’s performance over time.
  • What are the Additional Benefits of LEV Testing? – LEV Testing offers several additional benefits beyond compliance, including protecting worker health by reducing exposure to hazardous substances, enhancing workplace productivity through improved air quality and offering long-term cost savings by mitigating health-related expenses and legal risks.


It enables customised risk management tailored to specific industrial environments, supports sustainability by preventing pollutant release and ensures adherence to health and safety regulations, safeguarding both employee well-being and company reputation.

  • What Happens if our LEV System Fails its Test? – If an LEV system fails its test, it indicates the system isn’t effectively controlling hazardous substances, posing a risk to worker health. The immediate steps include identifying and rectifying the issues, which may involve repairs, adjustments, or upgrades to the system.


It’s essential to address these faults promptly to ensure the system meets safety standards and protects employees from harmful exposure, thereby maintaining compliance with health and safety regulations.

  • What Industries Require Testing? – Industries that require LEV Testing primarily include those involving woodworking, metalworking, chemical processing, pharmaceuticals, food production and any sector where workers are/may be exposed to hazardous substances like dust, fumes or vapours.
  • What Happens If We Don’t Test? – Failing to conduct effective LEV Testing can result in legal repercussions, health risks to employees and potential financial liabilities from non-compliance with health and safety regulations.


It’s crucial to ensure that LEV systems are regularly tested to maintain a safe working environment and adhere to all UK legal standards.

Safeguard Your Business Today

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Available COSHH services

We’re happy to answer any questions you have, or provide you with an obligation free estimate for work. Just send us a message!
01782 614236 or [email protected]

Workplace Air Monitoring

LEV Testing

COSHH Regulation 9

Breathing Air Testing

Face Fit Testing

Workplace Noise Monitoring

Hand Arm Vibration

Whole Body Vibration

Get in touch


Synergy Environmental Solutions provide
sampling and consultancy services
throughout the UK and Ireland

We’re happy to answer any questions you have,
or provide you with an obligation
free estimate for work.
Just send us a message!

Tel: 01782 614236

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