Professional LEV Testing & Compliance

HaddenAir Ltd provides Local Exhaust Ventilation (LEV) testing for commercial and industrial workplaces. Our assessments follow HSG258 and COSHH Regulation 9, ensuring extraction systems operate safely, effectively and in line with recognised industry standards. Each examination is carried out using structured, evidence‑based methods to support safe working environments and reliable system performance. 

Your LEV testing is carried out by a BOHS P601‑certified technician, demonstrating proven competence in the Thorough Examination and Testing of Local Exhaust Ventilation systems. This qualification confirms that all assessments follow recognised industry standards and align with HSE expectations. 

 LEV systems are essential for controlling airborne contaminants, including dust, fumes, vapours and welding by‑products. Routine testing verifies system performance, safeguards employee health and ensures your workplace meets HSE expectations. Effective LEV control also reduces long‑term equipment wear, supports reliable extraction and helps maintain a safe working environment. 

Our LEV Thorough Examination & Test covers all key elements required by HSE guidance, ensuring your system is safe, effective, and compliant. This includes:

• Visual inspection of the complete LEV system
• Assessment of capture efficiency, control effectiveness, and design performance
• Measurement of airflow, pressure, and system velocities
• Evaluation of ducting, filters, extraction points, and control equipment
• Checks on system condition, wear, and overall functionality
• Review of maintenance records and system usage
• Full compliance report with clear recommendations

After testing, you receive a clear, detailed report outlining system performance, airflow measurements, hood capture efficiency, and any issues requiring attention. The report meets HSE requirements and includes practical recommendations to help you maintain safe and effective extraction systems.