LEV Testing · Wythenshawe
The Sharston and Roundthorn estates by the airport machine, weld and fabricate, raising fume, mist and dust the law says must be controlled. We examine and test local exhaust ventilation to HSG258 and certify it.
Wythenshawe sits on some of south Manchester's busiest industrial ground. The Sharston and Roundthorn estates by the hospital and the airport run engineering, precision machining, aerospace-supply and fabrication units, and every process that raises fume, mist or dust depends on local exhaust ventilation that captures it at source.
LEV falls out of tune without anyone noticing - filters clog, ducts fur, fans lose pull - until a hood no longer controls what a worker breathes. We carry out thorough examination and testing to HSG258 across Wythenshawe: measured capture and face velocities at the working points, a verdict against the system's intended performance, and a label with a next-due date you can trust.
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.
Real jobs, described by sector and area - never by a client's name.
At a machine shop on the Roundthorn estate, the oil-mist extraction over the CNC line needed its thorough examination. We measured capture at the enclosures and the transport velocity through the system, benchmarked it against the design, and labelled it with the readings and next-due date.
A Sharston fabricator's weld-fume arms needed testing. We measured capture at each arm, found the pull down on one, set the fix and re-tested before certifying.
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.
The point of a thorough examination and test is to prove the extraction still controls the exposure - so we measure it, we do not eyeball it. Condition, capture and face velocities, transport velocity and static pressure are checked against the design intent under HSG258, and the result is written up and labelled on the plant.
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 condition of the hoods, ducting, filter and fan and how each is meant to control its process.
We measure capture and face velocities, transport velocity and static pressure at every key point.
The readings are judged against the design benchmark under HSG258, with a clear pass or fail on control.
The plant is labelled and you get the report and next-due date for your COSHH records.
At least every 14 months for most systems, more often for higher-risk processes. We set the interval to the process and label it on the plant.
Condition of hoods, ducts, filters and fan; measured capture and face velocities; transport velocity and static pressure - all against how the LEV should perform to control the exposure.
We set out exactly what failed - often one reading - so it can be corrected, and re-test to confirm control before certifying.
Yes - the Sharston and Roundthorn estates and the units across Wythenshawe, and the wider Greater Manchester.
No - welding fume, metal and wood dust, spray booths, mist extraction, fume cupboards and salon and dental extraction all fall under the same duty.

The Roundthorn and Sharston estates supply the airport and the region's engineering with machined and fabricated parts, and the fume, mist and dust that work raises has to be drawn off where it is made. We test to HSG258 so the units that keep Wythenshawe's industry running can prove their extraction protects the people in them.
We have carried out LEV thorough examination and testing to HSG258 since 2001, across Greater Manchester 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 Greater Manchester.