LEV Design
The LEV design phase is the most critical stage of any extraction project—if the engineering isn’t precise, the system won’t effectively capture hazardous substances.
With 30 years of experience in local exhaust ventilation design, we’re the ideal partner to design, install, improve, and maintain your LEV system.
LEV Design & Engineering
Why are LEV systems important?
Each year, over 12,000 workers develop lung diseases from breathing in hazardous substances at work.
UK businesses can help prevent this by investing in an LEV system. A well-designed, properly installed solution can effectively protect workers while keeping your workplace COSHH compliant.
With over 30 years of specialist experience in local exhaust ventilation design, we are the ideal partner to help you:
- Design bespoke LEV systems tailored to your workspace.
- Install and commission new extraction setups.
- Improve and optimize existing LEV system design for better performance.
- Maintain compliance with COSHH regulations.
LEV System Design Experts
Over 30 years of LEV Design Experience
A well-engineered LEV system is essential for worker safety and operational efficiency. Our team have the expertise to design, install, and modify your LEV system to meet your specific needs.
Our BOHS P602-certified engineers ensure every local exhaust ventilation design meets stringent industry standards and provides maximum protection. To ensure full compliance with HSG258, our design process meticulously considers the four core HSE components:
- Hood/Enclosure – Designed to capture and contain contaminants as close to the source as possible to prevent escape into the workplace.
- Ducts – Engineered to transport contaminants at the correct velocity, ensuring no fallout or blockages within the LEV systems.
- Filter/Air Cleaning Device – High-efficiency filtration to remove hazardous particles before the air reaches the fan or is recirculated.
- Fan – Selected to provide the precise airflow and pressure required for effective extraction.
Professional LEV System Installation
Efficient, Trusted LEV System Installation & Commissioning
Our team ensures your new LEV system is installed with precision and minimal disruption to your manufacturing processes.
Following the installation of your LEV system, we provide a comprehensive handover package, as mandated by HSG258. This ensures your business remains compliant and your operators stay protected. Our commissioning package includes:
- Commissioning Report – A vital document containing airflow measurements, duct velocities, and filter pressure drops to prove the LEV system design is performing to its intended specification.
- User Instructions and System Diagrams – Clear, accessible guidance for your team on how to operate the extraction equipment correctly.
- System Logbook – A dedicated record for tracking mandatory 14-month TExT (Thorough Examination and Test) results and routine maintenance.
- Airflow Indicators (optional) – For real-time monitoring of system performance.
- Parts and spares list – A full breakdown of components to ensure seamless upkeep and long-term reliability.
Support at Every Step
Operational Guidance & Expert Technical Support
Once your LEV system is commissioned, our partnership continues. Proper operation is vital to maintain the integrity of the LEV system and ensure long-term protection for your workforce.
To keep your system running at peak performance, we recommend the following best practices:
- Adhere to Operator Manuals – Always operate the system according to the provided user instructions and design specifications.
- Routine Visual Inspections – Regularly check ducting, fans, and hoods for signs of wear, blockages, or physical damage.
- Weekly Performance Checks – Verify that the system is functioning correctly and that all airflow indicators are providing accurate readings.
- Identify Failure Patterns – Monitor your system’s history to streamline maintenance and predict when filters or parts may need replacing.
Expert Repairs and Troubleshooting
Even with the best care, components can wear out or sustain accidental damage. When issues arise, our team is ready to assist. From minor ductwork repairs to major fan replacements or filter housing upgrades, we provide the technical support needed to restore your LEV system design to its full operational capacity.
Prompt repairs not only protect your staff but also prevent small faults from escalating into costly system failures.
Statutory Compliance (TExT)
Remember, it is a legal requirement to have your LEV systems undergo a thorough examination and testing at least once every 14 months. Our BOHS-certified engineers provide comprehensive testing services to ensure you remain fully compliant with HSE regulations.
Professional LEV System Installation
LEV System Maintenance & Monitoring
Even the best local exhaust ventilation design will deteriorate without professional care. Issues like blocked filters or duct damage can lead to gradual performance loss, putting your staff at risk.
The Value of Effective Maintenance
Proactive upkeep ensures your LEV systems remain compliant and cost-effective by:
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Preserving Control: Maintaining suction at the source to capture hazardous substances.
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Extending Lifespan: Reducing unplanned downtime and avoiding expensive fan or filter failures.
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Guaranteeing Compliance: Ensuring your system passes its statutory 14-month test.
Continuous Monitoring
Monitoring provides day-to-day assurance that your LEV system design is working as intended. We implement:
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Pressure Gauges & Alarms: For real-time airflow and filter restriction alerts.
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Visual Inspections: Regular checks of hoods, ducting, and seals.
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Operator Tools: Simple checks using smoke tubes or tell-tales to verify capture.
The Control Assurance Loop
For total safety, your LEV system requires three synchronised elements:
- Testing: Verifies overall legal compliance.
- Maintenance: Sustains mechanical performance.
- Monitoring: Detects early deterioration to prevent failure.
Neglecting any of these increases the risk of occupational ill health and regulatory fines. Together, they provide the long-term protection your workforce deserves.
Testimonial
“ITS supplied, installed, and commissioned a suspended vacuum unit inside a rail depot. The installation was carried out to a high-quality standard, and the team had excellent knowledge of the equipment.
Onsite issues encountered were resolved through their collaborative approach to problem-solving. ITS demonstrated an excellent attitude toward safety and the documentation required to carry out work in a rail depot environment, such as inductions, permits, WPPs, and RAMS. All operatives understood the requirements and expectations of site rules and responded positively to feedback.
I would highly recommend ITS, and we look forward to working with them in the near future.”
LEV Design for Every Industry
We design, install, and maintain LEV systems to help businesses create safer, healthier, and compliant work environments. By effectively controlling airborne contaminants, our solutions protect workers and improve air quality. We work with a wide range of industries, including but not limited to:
Built on Compliance and Safety Excellence
Expert LEV Design Insight
By gaining an understanding of your process and hazardous substances used, we will design and install a system that is effective, efficient & compliant
Kieren Hebborn
LEV Technican
View the following HSE documents for more information:
HSG258 – Controlling airborne contaminants at work
INDG408 – Clearing the air – A simple guide to buying LEV
INDG409 – Time to clear the air: A workers pocket guide
INDG136 – Working with substances hazardous to health
EH40:2005 – Workplace Exposure Limits
OUR SERVICES
LEV Related Services
LEV Testing
LEV Products
LEV Servicing
Your single-source provider
Why choose Impact
We are a single-source provider for all workplace dust, fume, vapour and oil mist extraction requirements.
From LEV testing and system design to installation and ongoing maintenance, our services are delivered by BOHS-qualified technicians and overseen by CoC-qualified management — ensuring fully compliant, reliable and effective extraction solutions throughout the life of your system.
Experienced
30 years of nationwide coverage
Qualified
P601, P602, P603, P604 qualified LEV technicians
Outstanding Service
We have a high percentage of returning customers
Expertise
Experts in LEV project management
Warranty
12 month warranty on all installations