Ventilation Cleaning Services

At Clean Air 24 Seven, we specialise in LEV inspection, testing, and maintenance across the UK. Our mission is simple — to ensure that your LEV systems are performing safely, efficiently, and in full compliance with UK health and safety regulations. Whether your business involves welding, wood cutting, vehicle repair, car manufacturing, chemical handling, or pharmaceutical production, our BOHS-qualified engineers deliver a professional, compliant service that keeps your workforce protected and your business audit-ready.

We are here to help, if you require any advice, simply call 0203 6408 247

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What Is an LEV System?

A Local Exhaust Ventilation (LEV) system is designed to control airborne contaminants such as fumes, dust, vapours, and gases at their source. By extracting hazardous substances before they can enter the breathing zone, LEV systems protect employees from occupational exposure and help maintain a clean, compliant working environment.

LEV systems are found in a wide range of industries, including:

Welding workshops – removing metal fumes and particulates.
Woodworking facilities – capturing sawdust and fine particles.
Automotive workshops – extracting exhaust emissions and brake dust.
Chemical laboratories – controlling hazardous vapours and solvent fumes.
Pharmaceutical manufacturing – ensuring clean air in production and packaging areas.

Without regular LEV inspection and testing, even a small fault or reduction in airflow can lead to exposure risks, regulatory non-compliance, and long-term damage to equipment and employee health.

Why LEV Inspection services Are Essential

Under the Control of Substances Hazardous to Health (COSHH) Regulations 2002, any business using an LEV system must ensure that it is maintained in an efficient state and thoroughly examined at least every 14 months — or more frequently in high-risk environments.

Regular LEV inspection identify issues such as:

Blocked or damaged ductwork.
Faulty extraction hoods or filters.
Reduced airflow and system performance.
Incorrect or unsafe installation.
Build-up of hazardous residues.

Failing to carry out regular LEV testing can lead to serious health and legal consequences. Poorly functioning systems can expose employees to harmful substances that may cause respiratory illness, skin irritation, and long-term occupational diseases. From a compliance perspective, the Health and Safety Executive (HSE) can issue enforcement notices, fines, or even prosecution for non-compliance.

For a FREE Quote or Any Advice Simply Call 0203 6408 247

Comprehensive LEV Inspection by Clean Air 24 Seven

At Clean Air 24 Seven, we deliver comprehensive LEV inspection and testing services designed to meet and exceed HSE requirements. Each inspection follows the BOHS and HSG258 guidelines to ensure your system operates safely and efficiently.

Our LEV inspection process includes:

Initial assessment – Our engineers assess your system design, intended use, and any process changes that may affect performance.

Visual examination- We inspect all components including hoods, ducts, filters, fans, and discharge points for physical damage or deterioration.

Airflow and pressure testing- Using calibrated instruments, we measure airflow velocities and static pressures to confirm that the system performs within safe limits.

Tracer gas or smoke testing – We visually demonstrate airflow patterns to verify effective contaminant capture at the source.

Filter and control checks – Filters and control systems are checked for integrity, pressure differentials, and safe operation.

Detailed reporting – You will receive a full LEV inspection report, complete with test results, photographic evidence, performance graphs, and recommendations for corrective actions if needed.

Each report satisfies the documentation requirements of COSHH Regulation 9, providing you with evidence of compliance for internal audits and HSE inspections.

BOHS-Qualified Engineers You Can Trust

Every inspection is carried out by our team of highly trained BOHS-qualified engineers, each certified to the highest industry standards:

P601 – Thorough Examination and Testing of Local Exhaust Ventilation Systems
P602 – Design Principles of LEV Systems
P603 – Thorough Examination and Testing – Performance and Management
P604 – Performance Evaluation and Management of LEV Systems
W501 – Measurement of Hazardous Substances

These qualifications ensure our engineers have a deep understanding of LEV system design, performance, and control. We do not just identify problems — we understand how to optimise system performance, improve efficiency, and extend the life of your equipment.

For a FREE Quote or Any Advice Simply Call 0203 6408 247

Industries We Serve

Our expertise spans across a broad range of sectors where air quality and contamination control are critical:

Welding and Fabrication- Welding produces metal fumes and gases that can cause serious respiratory conditions. Our LEV inspection ensure your extraction systems effectively remove welding fumes at the source.

Woodworking and Carpentry – Wood dust is a recognised respiratory hazard under COSHH. We inspect and test dust extraction systems to ensure compliance and protect your workforce from exposure.

Automotive Workshops and Manufacturing – From exhaust extraction to paint booth ventilation, we test and certify LEV systems in garages, car plants, and maintenance bays to ensure safe operation.

Chemical and Laboratory Environments – We specialise in inspecting fume cupboards, ventilated enclosures, and extraction arms used for chemical handling and mixing processes.

Pharmaceutical and Cleanroom Facilities – Precise airflow control is vital in pharmaceutical production. We perform LEV inspections that support GMP standards, ensuring contamination control and process integrity.

LEV Inspection Frequency and Maintenance

The HSE recommends LEV systems be thoroughly examined and tested at least once every 14 months. However, depending on your process and risk level, some systems may require more frequent testing — for example:

Every 6 months for systems controlling metal dust or welding fume.
Every 12 months for general dust extraction systems.
Every 14 months for most other applications.

Clean Air 24 Seven offers tailored LEV inspection schedules based on your operations and system type. We can set up automatic reminders, ensuring you never miss a compliance deadline.

We are here to help, if you require any advice, simply call 0203 6408 247

Benefits of Regular LEV Inspections

Choosing Clean Air 24 Seven for your LEV inspection brings measurable benefits:

Regulatory compliance with COSHH and HSG258.
Improved air quality and reduced employee exposure.
Extended system lifespan through early detection of wear or damage.
Reduced downtime thanks to preventative maintenance.
Peace of mind knowing your workplace meets HSE standards.

We provide a proactive partnership, not just a one-off service. Our engineers can also support you with LEV design reviews, commissioning, rebalancing, and maintenance — ensuring your systems operate safely all year round.

Clear, Actionable Reporting

After every inspection, you will receive a comprehensive LEV inspection report that includes:

System identification and site location.
Detailed visual inspection notes.
Measured airflow and pressure data.
Photographic evidence and test results.
Recommendations for repair or improvement.
Compliance certification for your records.

Our reports are easy to understand, clearly formatted, and accepted by HSE inspectors during audits.

Why Choose Clean Air 24 Seven?

UK-wide coverage with flexible scheduling to minimise disruption.
BOHS-qualified engineers with P601–P604 and W501 certifications.
Fast reporting turnaround — full reports within 5 working days.
Comprehensive LEV services — inspection, testing, and remedial works.
Transparent pricing with no hidden costs.

Whether you operate a single extraction system or manage multiple facilities nationwide, Clean Air 24 Seven is your trusted partner for professional LEV inspections.

Book Your LEV Inspection Today

Do not wait until your next HSE visit to discover issues with your LEV system. Stay compliant, protect your employees, and safeguard your business with Clean Air 24 Seven’s LEV inspection services.

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