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British Cleaning Solutions

LEV System Testing

Professional LEV testing and thorough examination to ensure local exhaust ventilation systems operate effectively, protect workers from hazardous airborne contaminants and support COSHH compliance.

Lev System Testing
NHSHard Rock CafeMcCormickHilton FoodsWatesBoeingUniversity of OxfordArmstrong

Overview

About the service.

Local Exhaust Ventilation (LEV) systems play a vital role in controlling hazardous dust, fumes and airborne contaminants at source. Over time, system performance can decline through wear, damage or poor maintenance, reducing its ability to protect employees.

Our engineers carry out thorough LEV testing to assess system performance, verify effective contaminant control and provide documented evidence to support workplace safety and COSHH compliance.

What’s included

  • Thorough LEV examination & testing
  • Airflow & performance measurements
  • System condition inspection
  • Defect identification & reporting
  • Compliance reporting & certification
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Our Approach

Performance you can trust.

Every LEV assessment begins with a review of the system, its intended use and any available commissioning or previous test information. Our engineers carry out a structured examination using calibrated equipment to assess system performance accurately and consistently.

The results are clearly documented, highlighting any defects or performance issues and providing practical recommendations to help maintain effective contaminant control.

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lev system ducting

Why it matters

Protecting people at work.

Regular fire damper testing helps ensure fire compartmentation remains effective, reducing risk while supporting ongoing compliance.

Worker protection

Verifies that hazardous dust, fumes and airborne contaminants are being effectively captured at source.

Legal compliance

Supports compliance with COSHH regulations and recognised industry guidance.

Performance assurance

Identifies airflow or system performance issues before they affect workplace safety.

Documented evidence

Provides clear records for audits, inspections and health and safety compliance.

Thoroughly Examined

Independently verified.

LEV systems should be thoroughly examined and tested at regular intervals to confirm they continue to provide effective control of hazardous substances.

Every project includes detailed test results, system performance measurements, photographic evidence and a comprehensive report, providing a clear record for employers and duty holders.

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Cleaned and certified to TR19®

How it works

From inspection to report.

A clear, accountable process — documented at every step.

01

Review

We review the LEV system, its application and any previous test records before beginning the examination.

02

Inspect

The system is visually inspected to assess its condition, accessibility and suitability for operation.

03

Test

Performance measurements are taken using calibrated equipment to verify the system is operating effectively.

04

Report

You receive a comprehensive report detailing test results, observations and recommendations for any remedial works.

Where we work

Sectors we serve.

We clean and certify ventilation systems across a wide range of commercial and industrial settings.

FAQs

Common questions.

How often should LEV systems be tested?

Most LEV systems should undergo a Thorough Examination and Test (TExT) at least every 14 months under COSHH. Some systems require more frequent testing depending on the process and risk.

What regulations apply to LEV testing?

LEV testing supports compliance with the Control of Substances Hazardous to Health (COSHH) Regulations, helping employers demonstrate that exposure to hazardous substances is being effectively controlled.

What happens if the system fails?

If the system does not achieve the required performance, we identify the cause, record the findings and provide recommendations for any remedial works needed to restore effective operation.

Do you provide a full LEV report?

Yes. Every examination includes a detailed report with performance measurements, observations, photographic evidence and recommendations, providing a complete record for your compliance documentation.

Speak to the team

Ready when you are.

Get a clear, no-obligation quotation — or call and talk it through with an engineer first.