LEV Testing

LEV Testing - Industrial safety professional in hard hat and high-visibility vest testing local exhaust ventilation system using air velocity meter and smoke pen to verify airflow and capture efficiency of overhead LEV hood

What is LEV Testing?

Local Exhaust Ventilation (LEV) testing is a critical process for ensuring that ventilation systems effectively capture and remove airborne contaminants, including combustible dusts, from the workplace. Regular testing and validation of LEV systems is essential for maintaining worker safety and preventing dust accumulation that could lead to explosions.

Our LEV testing services follow international standards including HSG258 (UK HSE) and local regulations to ensure systems are operating effectively. We provide comprehensive testing, performance evaluation, and certification to help organizations maintain compliance and protect workers from exposure to hazardous dusts and fumes.

Effective LEV systems are a primary control measure for dust explosion prevention, removing dust at the source before it can accumulate and form explosive dust clouds. Regular testing ensures these critical systems continue to perform as designed.

Key Testing Parameters

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Face Velocity

Measurement of air velocity at hood face to ensure adequate capture of contaminants at the source.

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Static Pressure

Measurement of system static pressure to verify fan performance and identify blockages or leaks.

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Airflow Rate

Measurement of volumetric airflow through the system to ensure adequate extraction capacity.

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Capture Efficiency

Evaluation of how effectively the LEV system captures contaminants at the source before they enter the workplace air.

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System Integrity

Inspection of ductwork, connections, and components for leaks, damage, or deterioration that could affect performance.

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Performance Verification

Comprehensive verification that the system meets design specifications and regulatory requirements.

Our Testing Process

System Inspection

Visual inspection of all LEV components including hoods, ductwork, filters, and fans to identify any visible issues or damage.

Performance Measurements

Comprehensive measurements of face velocities, static pressures, airflow rates, and system performance using calibrated instruments.

Capture Efficiency Testing

Evaluation of capture efficiency using smoke testing or tracer gas methods to verify effective contaminant capture.

Leak Detection

Systematic testing for leaks in ductwork and connections that could reduce system effectiveness and waste energy.

Data Analysis

Analysis of all test results against design specifications and regulatory requirements to identify deficiencies.

Report & Recommendations

Comprehensive test report with findings, performance evaluation, and recommendations for improvements or maintenance.

Industries We Serve

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Manufacturing

Food processing, pharmaceuticals, chemicals, and general manufacturing facilities.

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Chemical Processing

Petrochemical, specialty chemicals, and bulk chemical processing plants.

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Agriculture

Grain handling, feed processing, and agricultural product manufacturing.

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Metal Processing

Metal powder production, machining, and metalworking operations.