A cleanroom garment exists to stop the person wearing it contaminating the product. Once you accept that, the laundering requirements follow logically — and it becomes clear why a general industrial laundry, however good, is not equipped for the job.
Why ordinary laundering fails
- Particle transfer — washing cleanroom garments alongside ordinary workwear deposits lint and fibres onto them. The garment leaves visibly clean and functionally contaminated.
- Water quality — ordinary process water leaves mineral residue on drying. For a garment that must not shed particles, that residue is the problem.
- Static — synthetic cleanroom fabrics build static charge, and static attracts and holds particles. Anti-static treatment is not a finishing nicety here; it is functional.
- Air during drying — drying in unfiltered air re-contaminates a garment that has just been cleaned.
- Packaging — a correctly processed garment packed in an ordinary bag arrives compromised.
What controlled laundering involves
- Segregated handling — cleanroom garments never share equipment or handling with general workwear.
- Treated water cycles — to avoid mineral and residue deposition.
- Anti-static rinse — so the garment does not attract particles in use.
- Filtered-air drying — clean air in, so the garment stays clean coming out.
- Controlled inspection — for damage, seam integrity and closure function, since a torn garment is a failed barrier.
- Sealed packing — typically dual-bagged, so the outer bag can be removed at the airlock and the inner bag enters the controlled area intact.
- Batch documentation — records that tie a specific garment batch to a specific process run.
What your auditors will ask for
If your facility is audited, the laundering of controlled garments will come up. Expect to need: documented procedures for the laundering process, records tying garment batches to process runs, evidence of cycle tracking and garment retirement criteria, and a clear description of how segregation from non-controlled items is maintained. A vendor who cannot supply these is a gap in your own compliance position, not just a service problem.
Questions to put to a vendor
- How are cleanroom garments segregated from other work — by equipment, by time, or not at all?
- What water treatment is used, and is it monitored?
- How is drying air handled?
- How are garments packed, and does the packing suit our airlock procedure?
- What documentation comes with each batch?
- How are wash cycles tracked per garment, and what are the retirement criteria?
- What happens when a garment fails inspection?
We support pharmaceutical units, cleanroom facilities and laboratories in Ahmedabad and Gandhinagar with controlled garment laundering. If you are evaluating vendors, we will walk you through our process step by step and show you the documentation you would receive — including where our scope ends.
