Industrial & Manufacturing

Not every controlled environment exists because a regulator requires it. Precision mechanical assembly, coating application and optical component manufacture are all processes where airborne particles landing on a surface, a mechanism or an optical element can cause a defect – the driver here is yield and product quality, not an externally imposed cleanroom class.

In coating application, particles that land on a wet or freshly prepared surface become visible defects once the coating cures. In optical component manufacture, the same particles can mark or interfere with a precision optical surface. Precision mechanical assembly carries a parallel concern with moving components and mechanisms rather than a coated or optical surface, but the underlying source of the problem – airborne particles settling where they shouldn't – is the same across all three.

Where there's no regulatory cleanroom class to meet, air sampling instead aims at correlating measured particle levels with the defect or yield outcomes you're actually seeing. That can mean establishing a baseline for a process area, checking whether a specific workstation or piece of equipment is generating disproportionate airborne particles, or verifying that a change to layout, ventilation or process hasn't made contamination worse.

We review your processes and any chemicals or materials handled, identify the right sampling points, and measure under representative operating conditions rather than with the line shut down. Results are compared against occupational exposure limits where relevant to the work environment, alongside whatever particle or contamination data speaks to product quality – the same visit can cover both angles where a facility needs it.

Industrial air sampling typically uses a portable particle counter that can be carried between workstations or process areas in a single visit, rather than a fixed installation – useful where the question is which part of a facility is generating airborne particles, not monitoring one classified room continuously. Sampling and analysis follow the same pattern as any of our air measurement work: we review your processes, identify sampling points, measure under representative operating conditions, and deliver a report with results and recommendations.

Particle counting is also useful for troubleshooting: if a process area or product line is seeing an unexplained rise in defects, a measurement round can help locate whether an airborne particle source is a contributing factor. As with any measurement programme, the instruments themselves are calibrated on a recurring, traceable schedule, so results stay comparable across visits and over time. Our guide on what air sampling involves and when it's needed covers the broader context, including its role in systematic occupational health work.

How often a facility measures, and how many points it covers, follows from what prompted the request in the first place – a one-off check after a process change, a recurring programme tied to an ongoing defect investigation, or a periodic review as part of routine occupational health management. There's no single interval that fits every industrial site, which is why we start from a review of your process rather than a fixed schedule.

A report sets out results per sampling point, a comparison against occupational exposure limits where the work-environment side is in scope, and recommendations aimed at whatever prompted the measurement – an unexplained defect trend, a process change, or a routine check. The same visit can support a risk assessment or an internal quality investigation, since the underlying data serves both.