LEV Testing · Wokingham
The Molly Millars Lane estate machines, welds and sprays, raising fume, mist and dust the law says must be controlled. We examine and test local exhaust ventilation to HSG258 and certify it.
Wokingham's working side sits on the Molly Millars Lane estate, the town's main industrial area, alongside the light-industrial units of the Thames Valley. The engineering and precision-machining units, the bodyshops and the joineries all raise fume, mist or dust, and each depends on local exhaust ventilation that captures it at source.
LEV drifts out of tune unseen - filters clog, ducts fur, fans lose pull - until a hood no longer controls the exposure. We carry out thorough examination and testing to HSG258 across Wokingham: measured capture and face velocities at the working points, a verdict against the system's intended performance, and a label whose next-due date holds.
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 Molly Millars 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 Wokingham bodyshop's spray booth needed testing. We measured the booth airflow and capture, checked the filters, set out the corrections and labelled the plant with the readings and 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.
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 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.
At least every 14 months for most systems, more often for higher-risk work. 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 put right, and re-test to confirm control before certifying.
Yes - the Molly Millars Lane units and the workshops across Wokingham, and the wider Berkshire.
No - machining mist, welding fume, wood and metal dust, spray booths, fume cupboards and salon and dental extraction all fall under the same duty.

The Molly Millars Lane estate keeps Wokingham's engineering and vehicle trades working, unit after unit machining, welding and spraying - each raising something its LEV has to draw off at source. We test to HSG258 so those workshops can prove their extraction controls what their people breathe.
We have carried out LEV thorough examination and testing to HSG258 since 2001, across Berkshire 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 Berkshire.