LEV Testing · Towcester
Across Towcester, the engineering, joinery and vehicle workshops throw off fume, mist and dust the law requires to be controlled - and the control proven by a thorough examination and test.
Around Towcester the motorsport and engineering units weld and machine, the joinery and timber shops cut and sand, and the vehicle shops grind and refinish. Where a workshop welds and grinds the fume and dust are real - the arc and the grinder throw off weld fume and metal dust - and the joinery and refinishing units add wood dust, oil mist and paint mist, all things a worker should not breathe.
Local exhaust ventilation catches it at source, and the law will not take that on trust. COSHH requires the weld-fume arms, the wood-dust extraction and the spray and mist extraction to be thoroughly examined and tested at least every 14 months, measured in use rather than assumed to work.
CNC and manual machining raises oil mist and metal dust at the enclosure and bench that has to be captured at source.
Flour, powders and steam need capture at the mixing and process points, from bakeries to production kitchens.
Saws, sanders and routers throw fine wood dust that has to be drawn off at the tool and the bench.
Weld fume and grinding dust need capture at the arm and booth, wherever steel is fabricated.
Bodyshop spray booths and prep bays carry paint mist and solvent vapour that the extraction has to hold and clear.
Fume cupboards, safety cabinets and dental and salon extraction all count as LEV and all fall due on the same clock.
Typical jobs we handle, by sector and area - representative of the work we do, not named clients.
At a motorsport-engineering unit near Towcester, welding, grinding and fabricating, the arms and hoods were barely pulling and weld fume and metal dust drifted into the workspace. We measured capture and face velocities at each point, checked the ducting and filters, and traced it to a fan running below duty. We listed the remedials, and re-tested to prove the control once put right, then certified to HSG258.
At a joinery unit near Towcester, running the saws, planers and sander, the system was failing to catch the wood dust at source. We measured face velocities and static pressure, checked the run, and found undersized ducting and a worn fan. We set out the fix, re-tested to confirm capture was back to spec, and certified to HSG258 with a dated label.
Condition of hoods, ducting, filters and fan - the damage, blockage and wear that quietly drops performance.
Measured capture and face velocities at the working points, plus transport velocity and static pressure through the system.
The readings assessed against how the LEV should perform to actually control the exposure - not just whether the fan turns.
Where the process warrants it, sampling to confirm the control is keeping the substance out of the breathing zone.
A thorough examination and test under COSHH is a real assessment, not a rubber stamp. It is a structured examination of the system's condition, measurement of its actual performance, and an assessment of those readings against how the system should perform to control the exposure. It follows the HSE's guidance, HSG258, and ends in a report and a label.
We test to the HSE's guidance, HSG258, and the job ends in a report and a label on the plant: what was measured, what passed, what needs putting right, and the date the next test falls due.
We inspect the system's condition - hoods, ducting, filter and fan - and identify how it is meant to control each process.
We take the readings: capture and face velocities, duct transport velocity and static pressure at the key points.
We assess the readings against the benchmark and set out clearly whether the system is controlling the exposure.
The system is labelled with the test result and next-due date, and you get the report for your COSHH file.
No more than every 14 months under COSHH Regulation 9, and sooner for certain higher-risk work. We judge the right interval for your process and put the next-due date on both the plant label and the report.
A report of the thorough examination and test to HSG258, each point marked pass or fail with any remedial work set out, and a dated label on the plant with the next-due date.
We set out exactly what failed and why - often a single reading such as static pressure or capture velocity - so it can be put right, and we re-test to confirm the control before certifying.
Yes - the Towcester workshops and units, and across Towcester and the wider Northamptonshire.
No - any LEV: welding fume arms, wood and grain dust systems, spray booths, mist extraction, fume cupboards, and dental and salon extraction all fall under the same duty and the same clock.

Towcester works its metal, timber and vehicles, welding and grinding, sawing and sanding, and refinishing - raising weld fume, metal and wood dust, oil mist and paint mist. Every one carries a duty to control what its work throws off - and to prove it with a measured test.
We have carried out LEV thorough examination and testing to HSG258 since 2001, across Northamptonshire and the UK. From a machine shop to a joinery, a spray booth or a lab fume cupboard, the job ends the same way: measured readings, a clear verdict, and a label whose next-due date you can rely on.
Tell us what you run and we will examine, measure, report and label it to HSG258 - across Northamptonshire.