LEV Testing · Oswestry
From the engineering units to the joinery and vehicle shops, Oswestry workplaces raise fume, mist and dust that the law says must be controlled - and the control proven by a thorough examination and test.
The workshops of Oswestry are where the engineering and fabrication units weld and machine, the joinery and timber shops cut and sand, and the vehicle and refinishing shops grind and spray. The arc and the grinder raise weld fume and metal dust, and the joinery and spray work add wood dust, oil mist and paint mist, all of which a worker should be kept from breathing.
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 fabrication unit on the Maes-y-Clawdd estate at Mile End in Oswestry, welding, grinding and fabricating, the extraction had lost capture and the shop was hazing by mid-shift. We tested capture at each point, checked the dampers and filters, and found a damper stuck and the filters loaded. We specified the remedial action and, once done, re-tested and certified the control to HSG258.
At a joinery unit near Oswestry, running the saws, planers and sander, the LEV was no longer clearing the wood dust and a haze built up over the shift. We measured capture and face velocities at each point, checked the ducting and filters, and traced it to a fan running below duty. We reported the remedial actions and, on re-test, certified the control to HSG258 with the next-due date.
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 examine the hoods, ducting, filter and fan and identify how each is meant to control its process.
We record capture and face velocities, transport velocity and static pressure at every key point.
The readings are assessed against the design intent under HSG258, with a clear verdict on control.
The plant is labelled with the result and next-due date, and you get the report for the COSHH file.
At least every 14 months under COSHH Regulation 9 - and sooner for certain higher-risk processes. We set the right interval for what you run and put the next-due date on the 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 Oswestry workshops and units, and across Oswestry and the wider Shropshire.
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.

Around Oswestry the metal, timber and vehicle work raises weld fume, metal and wood dust, oil mist and paint mist. Every workshop that produces it carries the same duty: capture it at source, and prove with a measured test that the capture works.
We have carried out LEV thorough examination and testing to HSG258 since 2001, across Shropshire 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 Shropshire.