LEV Testing

Most LEV systems should be tested at least once every 14 months. However, regular testing is recommended to ensure your system remains effective, especially in demanding processes.

The duration of an LEV test can vary depending on the complexity and size of the system. For most standard systems, testing usually takes between 1 and 3 hours. Larger or more complex systems may take longer, especially if multiple extraction points or processes need to be checked.

Although airflow indicators are not a legal requirement, employers must ensure their LEV systems consistently operate at the correct performance standard. A reduction in airflow—caused by issues such as duct damage, material buildup, or blockages—can compromise the system’s effectiveness, placing employees at risk of exposure to harmful substances.

Airflow indicators offer an immediate, visual confirmation that the system is functioning correctly, allowing employers to quickly identify and address airflow problems. This helps provide reassurance that the workforce is protected at all times.

The HSE’s LEV guidance (HSG258) explicitly recommends the use of airflow indicators as the only reliable method for instantly detecting airflow faults, making them a valuable component of any effective LEV system.

Our examiners are highly skilled professionals, equipped with the expertise, qualifications (BOHS P601-604), and experience necessary to conduct a comprehensive examination and test of your LEV system.

Drawing on detailed information from your system’s installation and previous inspections, they assess whether it continues to meet the required performance standards. Following the examination, you will receive a clear, concise report outlining your system’s compliance status, any identified issues, and recommended corrective actions.

As an employer, it is essential to:

• Carefully review and understand the report.
• Seek clarification if any aspects are unclear.
• Promptly implement any recommended actions to ensure your LEV system remains fully effective and compliant.

By law, employers are required to keep a copy of their LEV examination and test (TExT) report readily available on-site.

Our examiners adhere strictly to the HSE Approved Code of Practice, ensuring your report includes all essential information—such as the system’s performance relative to its original design specifications. This report serves as a legally compliant record, demonstrating that your LEV system has been properly examined and tested in line with current regulations.

Although labelling is not a legal requirement, COSHH regulations clearly state that employers must maintain LEV system performance and carry out thorough examinations at least once every 14 months.

These labels serve as a visible record of the most recent inspection date and the next due test, helping to keep your compliance on track. They also provide an immediate alert to employers, supervisors, and operators if the system has failed, ensuring any necessary remedial action can be taken without delay.

If an LEV system fails its test, it isn’t effectively controlling hazardous substances. The problem needs to be fixed promptly to keep staff safe and remain compliant.

This usually involves identifying the issue, making necessary repairs, and retesting the system before it can be used again.

Yes. Testing checks that your system is working effectively, while servicing keeps it maintained and fixes any issues. Both are important to stay safe and compliant.