Sector — industrial
Industrial LEV Testing & Fume Extraction
Thorough examination and testing of local exhaust ventilation to HSG258 — capture hoods, ducted systems and process extract, not just laboratory cupboards.
Why industrial is different
The duty is the same. The system is the whole building
In a laboratory, local exhaust ventilation usually means a fume cupboard. On an industrial site it means capture hoods, booths, on-tool extraction, ducted runs, fans and discharge points spread across a process — and COSHH Regulation 9 applies to all of it on the same 14-month cycle.
HSG258 is the guidance that governs how that examination is done, and it asks for more than a velocity reading at a hood. It expects the system to be assessed against how it was designed to perform, which means knowing the benchmark — and on older plant the original design data has usually long since disappeared.
Where that is the case, part of the job is establishing a defensible baseline so future examinations have something to be measured against, rather than repeating an unanchored reading every year.
Access is planned around shutdowns and permits, and where extraction failure stops production we treat the call-out accordingly.
Whole-system examination
Hoods, booths, ducting, fans and discharge assessed as a system, to HSG258.
Baseline where records are gone
Establishing a defensible performance benchmark for plant with no surviving design data.
Shutdown scheduling
Work planned into your maintenance windows and permit process.
Breakdown priority
When extraction failure stops a process, the call-out is prioritised.
What we do
Services for industrial sites
Compliance
HSG258 asks what the system was designed to do
COSHH Regulation 9 sets the duty and the 14-month maximum interval. HSG258 sets out how a thorough examination and test of LEV should be carried out, and its central expectation is that performance is judged against the system’s intended design, recorded somewhere an inspector can find it.
That is where most industrial sites are exposed. Not because the extraction is failing, but because nobody can produce the figure it is supposed to achieve, so a decade of annual readings proves nothing in particular.
Fixing that is a one-off exercise and it makes every subsequent examination meaningful.
Industrial FAQs
More on our full FAQ page.
It is extremely common on older plant, and it is fixable. HSG258 expects performance to be judged against intended design, so where no records survive we establish a baseline as part of the examination. After that, every annual test has something meaningful to compare against.
Yes. Capture hoods, booths, on-tool extraction, welding extraction, ducted runs, fans and discharge points are all local exhaust ventilation and all fall under the same duty. Send us an equipment list and we will confirm scope before quoting.
Yes. Send the permit and induction requirements with the enquiry so they are built into the programme rather than discovered on the day. Our engineers are directly employed, so the same team returns each visit.
Book your LEV examination
Send an equipment list and we will confirm scope. Site surveys are free.