Many workplaces rush to install Local Exhaust Ventilation (LEV) systems without exploring safer, simpler solutions first. HSE guidance (INDG136 and COSHH Essentials) makes it clear: LEV is a secondary measure. Eliminating or reducing hazards at the source should always come first.
With smart planning and correct commissioning, you can often design a process that needs less extraction, or none at all, while still meeting your compliance duties under EH40 and COSHH.
Start with the Hierarchy of Control
The COSHH hierarchy of control in INDG136 is clear:
- Eliminate: Remove hazardous materials or processes entirely.
- Substitute: Use safer alternatives to reduce exposure risks.
- Engineer it out: Enclose or contain the process.
- Extract: Use LEV to control residual risks.
- Protect: Use PPE as a last resort.
When commissioning starts early, these options are easier to integrate, reducing the size and cost of any LEV system needed.
When LEV Is Still Essential
Some workplace processes will always generate hazardous substances; like welding fumes, wood dust, or chemical vapours. In these situations, EH40 Workplace Exposure Limits (WELs) make reliable extraction non-negotiable.
The key is to ensure that the system is commissioned correctly so it performs as intended from day one. That way, future statutory inspections are straightforward, accurate, and help you stay confidently compliant.
Why Commissioning Matters for Future Inspections
According to HSG103, commissioning sets the performance baseline for every future statutory inspection. Without that data, inspections and testing are less effective, and you risk non-compliance. Accurate commissioning records mean your annual inspections are straightforward and your reports more reliable.
Benefits of Proper Commissioning and Regular Inspections
- Reliable compliance: systems that perform as intended and are easy to verify
- Simpler inspections: accurate benchmarks mean faster, more precise testing
- Reduced risk of downtime: early identification of issues before they become failures
- Improved safety: ongoing assurance that exposure remains below WELs
Plant & Safety for Inspections
At Plant & Safety, we specialise in LEV inspections to keep your workplace compliant and your people safe. Whether your system is newly commissioned or has been in place for years, we provide the statutory testing and clear reporting you need to meet HSE standards.
Learn more about our LEV inspection services or get in touch to schedule your next inspection.
Smarter Design, Safer Results
Commissioning sets the foundation for safer, simpler compliance, but regular inspections are what keep your system legal and effective. By staying on top of both, you’ll reduce costs, minimise risk, and protect your team.
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Got questions about COSHH or LEV inspection and testing? Visit our FAQ or simply fill out the form below and we’ll get back to you.
WHAT WE OFFER
How Plant & Safety Can Help
At Plant and Safety, we provide professional LEV Testing services carried out by BOHS P601 qualified engineers. We help ensure your systems are compliant, efficient, and fully documented.
Some of the things we can offer:
› Comprehensive LEV report and clear compliance guidance
› Secure inspection database with automated re-test reminders
› COSHH risk assessments
› Highly qualified, experienced engineers (BOHS P601)
› Operator training
All of our reports meet HSE and HSG258 standards.
How can we help?
To learn more or if you have any questions, please feel free to call or email us. You can also request a call back using our online form.
T: 0330 113 7920
E: sales@plantandsafety.co.uk
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