WBT Services Ltdlogo
LEV testing is a legal requirement

Is LEV Testing a Legal Requirement?

Local Exhaust Ventilation (LEV) systems are critical for protecting employees from the harmful effects of airborne contaminants within a workplace. These systems are designed to remove hazardous substances, such as dust, fumes, and vapour, directly at the source of emission before they can be inhaled by workers. Given the potential health implications associated with these contaminants, it begs the question: Is LEV Testing a legal requirement? Understanding the legal obligations surrounding LEV systems is essential for compliance and ensuring the health and safety of employees.

The Legal Framework Governing LEV Systems

In the United Kingdom, employers have a legal duty to provide a safe working environment for their workers. This obligation is underpinned by various pieces of legislation, notably the Health and Safety at Work etc. Act 1974, which provides the foundation for ensuring the health, safety, and welfare of workers. Furthermore, the Control of Substances Hazardous to Health (COSHH) Regulations 2002 specifically address the control of exposure to hazardous substances in the workplace.

Under COSHH, Regulation 9 states that any control measure taken to comply with the regulation must be maintained in an efficient state, in efficient working order, good repair and clean condition. Consequently, employers who use LEV systems to control exposure to hazardous substances are required by law to ensure these systems are properly maintained and tested.

LEV Testing: An Essential Compliance Measure

Regular testing of your LEV system is not only a legal requirement but a critical component of occupational health and safety management. The recommended frequency for thorough examination and testing is at least once every 14 months. However, some processes might require more frequent checks.

The purpose of LEV testing is to verify that the system is working as intended, providing the necessary protection for employees. It involves a comprehensive assessment of the system's performance, including visual inspections, technical evaluations, and assessment of control effectiveness. During these tests, a qualified person should verify whether the LEV is effectively capturing the contaminants, the air is being filtered adequately, and clean air is being emitted back into the workplace.

Failure to comply with these requirements can not only put employee health at risk but can also lead to substantial fines, prosecution, and damage to a company’s reputation.

Why Regular LEV Testing is Non-Negotiable

Employers who dismiss the importance of LEV testing might find themselves dealing with dire consequences. It's not just about meeting a legal requirement—it's about actively preventing work-related health conditions such as asthma, lung diseases, or even cancer that can arise from prolonged exposure to hazardous substances.

Regular testing ensures that any deterioration or faults in the LEV system are identified promptly, enabling employers to carry out the necessary repairs or adjustments. Consequently, the consistent functionality of LEV systems is maintained, thereby safeguarding the health of employees.

The Role of WBT Services Ltd

WBT Services Ltd operates across the UK, providing robust industrial systems and solutions tailored to the needs of diverse industries. While minimal reference to the client is necessary, it is pertinent to mention their expertise in offering comprehensive LEV testing services to ensure that systems meet regulatory requirements. Their qualified professionals understand the critical nature of proper LEV function and can help businesses remain compliant with UK law. For more information on their services, please visit WBT Services Ltd.


To answer unequivocally, is LEV testing a legal requirement? Yes, it is. By law, all employers in the UK utilising LEV systems to control exposure to hazardous substances must ensure these systems are maintained in an efficient working order and are regularly tested by competent individuals. Neglecting this obligation can have severe ramifications, from legal consequences to, more importantly, the health and life of employees.

Regular LEV testing is more than a tick-box exercise for compliance; it is a measure that potentially saves lives and upholds the integrity of the workforce. Companies, such as WBT Services Ltd, offer the expertise to help businesses meet these legal requirements, ensuring that workplaces not only operate within the bounds of the law but also maintain a safe environment for their most valuable asset—their employees.

More from the blog

Epsilon House The Square, Gloucester Business Park, Gloucester, GL3 4AD+44 7540 706 975

© 2023 WBT Services Ltd. All rights reserved.

Designed & developed by Finn Elliott.