Entry focus: Kimtech 47993 (Large/XL), 100 gowns/case.
Why gowning discipline matters (and why ISO context comes first)
Cleanrooms are classified and operated to control airborne particulate and contamination risk. ISO cleanroom classification frameworks (ISO 14644 family) set the context for why
operators are treated as a primary contamination source: people shed particles and can transfer residues through touch, clothing friction, and poor gowning technique.
Even when a garment has excellent barrier properties, poor donning/doffing can defeat the intended protection.
What this product is (manufacturer-positioned overview)
Kimtech A7 Certified Liquid Barrier Gowns are designed for splash-risk tasks in laboratory and controlled-environment workflows.
Manufacturer literature emphasizes a seamless front and closed back, plus an easy don-and-doff fit to reduce handling errors.
For interface control, thumb loops help keep sleeves positioned to maintain glove-to-gown integrity.
Published materials also reference liquid barrier test methods (including ASTM F1670 / ASTM F1671 and chemotherapy drug/hormone permeation references in A7 literature revisions).
Where it fits (USP <800> and lab splash-risk work)
- USP <800> HD handling areas: when your SOP requires a disposable gown that closes in the back, has long sleeves, and closed cuffs/interface control.
- Laboratory liquid handling: biologics, blood/body fluid splash precautions, and general liquid splash-risk tasks.
- Decontamination/cleaning tasks: where a liquid barrier garment is part of the PPE assessment.
- Controlled environments: where low-lint garments and clean handling are expected.
Specifications in context (SKU-level receiving and QA checklist)
| Attribute |
Kimtech 47993 |
| Brand / product line |
Kimtech A7 Certified Liquid Barrier Gown |
| SKU / part number |
47993 |
| Size |
Large / X-Large |
| Sterility |
Non-sterile (verify against your area classification and SOP) |
| Design |
Seamless front; closed back; easy don-and-doff |
| Interface control |
Thumb loops to help maintain glove-to-gown interface |
| Barrier positioning (published references) |
Liquid barrier positioning; ASTM F1670 / F1671 references in published literature; A7 literature may also reference permeation methods (revision-dependent) |
| Packaging |
10 bags of 10 gowns per case (100/case) |
Donning (gowning) education — ISO-first best practices
A practical, ISO-aligned donning sequence (general template)
- Pre-entry prep: remove jewelry; secure personal items; perform hand hygiene; confirm you have the correct size and garment type for the room/classification.
- Hair/face control first: don bouffant/hood/beard cover and mask per your classification and SOP so shedding is controlled before garments are handled.
- Footwear control: don shoe/boot covers without contacting the floor with clean surfaces; step over the line-of-demarcation properly.
- Gown without dragging: unfold away from the floor; avoid snapping/shaking; insert arms carefully to minimize friction-generated particles.
- Close fully in back: ensure closure is complete so the front remains a continuous barrier surface (especially relevant for USP <800> and splash-risk work).
- Glove-to-gown integrity: seat thumb loops before final glove positioning so sleeves don’t ride up; confirm wrists remain covered through your range of motion.
- Final check: confirm cuffs, closure, and fit; then proceed to the controlled area without touching non-controlled surfaces.
Important: Donning sequences vary by ISO class, airflow design, and product risk. Treat this as a training-oriented template and align it to your SOP, competency program, and environmental monitoring outcomes.
European perspective — Annex 1 enhancements (after ISO basics)
EU GMP Annex 1 builds on foundational contamination control expectations with a stronger emphasis on a documented Contamination Control Strategy (CCS),
risk management, and sterile manufacturing behaviors (including personnel practices in gowning areas/airlocks). If your operation supplies EU-regulated sterile products,
align gowning design, garment systems (sterile vs non-sterile), airlock behavior, and training evidence to your CCS and Annex 1 expectations.
In practice: Annex 1 typically drives more formalized gowning qualification, stricter behavior control in transitions, and deeper documentation of how gowning reduces contamination risk.
Common gowning failure modes (and how to prevent them)
- Touch contamination: handling the gown exterior with bare hands; prevent with staged donning and glove discipline.
- Sleeve ride-up: wrists exposed during tasks; prevent with correct thumb-loop use and glove placement.
- Incomplete closure: back not fully closed; prevent with buddy checks and mirror checks before entry.
- Particle generation by snapping: shaking garments; prevent by slow unfolding and controlled movements.
- Incorrect disposal/doffing: peeling the exterior across scrubs/skin; prevent by rolling contaminated surfaces inward and using SOP disposal streams.
SOSCleanroom note about SOPs
