Cosmetics Cleanrooms: ISO 22716 GMP and the Dust-Microbial Equation

Vietnam has become a hot spot for cosmetics manufacturing — both for the domestic market and for export (especially via OEM/ODM for Korean, Japanese, and US brands). Unlike pharmaceuticals, cosmetics do not "enter the bloodstream", but they do touch the skin, eyes, and lips — so they still require serious environmental control. This article explains ISO 22716 and how to design a sensible cosmetics cleanroom.

1. ISO 22716 — GMP for cosmetics

ISO 22716:2007 Cosmetics — Good Manufacturing Practices (GMP) is the international standard for cosmetic manufacturing. In the EU, ISO 22716 has been mandatory since 2013 for all cosmetics on the market — including imports.

In Vietnam, ISO 22716 is not yet mandatory, but:

• OEM plants that export — required if EU/US customers demand it.
• Premium domestic brands — moving towards this standard to raise quality and trust.
• Plants planning to export — should invest from the start.

ISO 22716 lays out 13 chapters on: personnel, premises, equipment, raw materials, production, laboratory, packaging, warehousing, quality control, complaints, change control, internal audit, and document retention.

2. Premises requirements

ISO 22716 does not specify exact cleanroom classes like pharma GMP, but it requires:

• Premises "designed and built to protect the product" — interpreted as environmental control matching each operation.
• Easy-to-clean work surfaces.
• Quality control of the air and water used in production.
• Separation between different operations and between different products.

In practice, cosmetics plants typically use a classification equivalent to GMP grades C-D in production areas.

3. Cosmetics plant zoning

Zone 1 — High-care (semi-sterile)

• Filling rooms for liquid product into pre-sterilised bottles or tubes (toner, serum, lotion).
• Rooms compounding products with biological actives (cosmetics with peptides, concentrated retinol, vitamin C).
• Requirement: equivalent to GMP C → ISO 7. Pre G4 + Medium F8 + HEPA H13 chain.

Zone 2 — Care

• Rooms compounding standard creams, lipsticks, mascaras.
• Capping and labelling rooms.
• Requirement: equivalent to GMP D → ISO 8. Pre G4 + Medium F8.

Zone 3 — General

• Raw-material weighing rooms, raw-material stores, packaging stores.
• Requirement: industrial AHU with Pre G4 + Medium F6/F7.

Zone 4 — Non-production

• Offices, lockers, finished-goods warehouses.
• Ordinary AHU.

4. Filter train by zone

High-care (Zone 1)

Pre G4 → Medium F8 → HEPA H13 (terminal box or FFU).

• ACH: 20-25 per hour.
• Differential pressure: +15 Pa vs. Zone 2.
• Microbial: <10 CFU/m³ (self-imposed; ISO 22716 does not set a hard number).

Care (Zone 2)

Pre G4 → Medium F8 (AHU). Optional HEPA for premium products.

• ACH: 15-20 per hour.
• Differential pressure: +10 Pa vs. Zone 3.

General (Zone 3)

Pre G4 → Medium F6/F7 (AHU).

5. The special challenge: dust and microbes

Dust from dry raw materials

Lipstick, eyeshadow, foundation, and mascara plants must handle large quantities of fine powders (pigments, talc, mica, kaolin). This dust is:

• Extremely fine (0.5-5 µm) — clings stubbornly.
• Allergenic for workers who inhale it.
• Cross-contaminating across batches — causing colour impurities.

Solutions:

• Cyclone + Cartridge filter on powder-room exhaust.
• Separate weighing rooms per colour family (reds separate, blues separate).
• Air shower before entering the filling room.

Microbes in cosmetics

Although cosmetics use preservatives (parabens, phenoxyethanol, sodium benzoate, etc.), a heavily microbial production environment burns through preservatives fast — and the product expires before its shelf life.

Especially dangerous microbial groups:

• Pseudomonas aeruginosa — causes eye infections (especially in eyeliner and mascara).
• Staphylococcus aureus — causes acne and skin inflammation.
• Candida albicans — causes fungal infections.

Typical microbial limits for finished product:

Product type	Total bacteria (CFU/g)	Pseudomonas/E.coli/S.aureus
Eye, lip, baby products	≤ 100	Not detected in 0.5 g
Other cosmetics	≤ 1,000	Not detected in 0.1 g

Meeting these limits depends largely on the air and surface conditions of the production room.

6. Design specifics

Wet cleaning

• Chemical-resistant epoxy or stainless-steel flooring.
• PVC / stainless / epoxy-painted panel walls resistant to 70% alcohol and isopropanol.
• Coved transitions between floor-wall and wall-ceiling.

Periodic disinfection

• Wipe floors, walls, ceilings with 70% alcohol or quaternary-ammonium solutions weekly.
• H₂O₂ fumigation periodically — requires chemical-resistant HEPAs in 304 stainless frames.

Compounding rooms

• 100% fresh-air AHU for cream and lotion compounding to prevent fragrance cross-contamination.
• Recirculating AHU for powder rooms (after a cyclone + cartridge dust collector).

Differential pressure

• Zone 1 (+30 Pa) → Zone 2 (+15 Pa) → Corridor (0 Pa) → Support area (-10 Pa).
• Colour-powder rooms: -5 Pa vs. corridor to keep coloured dust from spreading.

7. Real-world case: a 5,000 stick/hour lipstick plant

Configuration

• Wax + pigment compounding room: 100 m², Zone 2, recirculating AHU + Pre + F8 + cyclone exhaust.
• Stick-mould filling room: 80 m², Zone 1, 100% fresh-air AHU + Pre + F8 + HEPA H13 terminal box.
• Case-assembly and labelling room: 120 m², Zone 2.
• Carton-packing room: 80 m², Zone 3.

Operation

• Zone 1 ACH: 20 per hour.
• Zone 1 pressure: +30 Pa.
• 575×1175 FFUs for Zone 1: (80 × 3 × 20) / 1080 ≈ 5 units (if using FFUs). Alternatively, terminal HEPA boxes connected to the AHU.

8. Reference investment costs

• A 1,000 m² ISO 22716-compliant cosmetics plant:
• Premises, panels, flooring: 3-6 billion VND.
• HVAC + filters: 2-4 billion VND.
• Production and packaging equipment: 5-15 billion VND.
• QC lab: 1-3 billion VND.
• Total: 11-28 billion VND depending on scale and automation level.

9. Filter-selection tips for cosmetics

• 304 stainless frame for HEPA — withstands alcohol and quaternary ammonium.
• Chloroprene gaskets instead of PU — better long-term chemical resistance.
• Washable Pre Filter for powder rooms — cleaned weekly.
• Medium F8 for filling rooms — F9 not needed unless requirements are very tight.

Conclusion

Cosmetics cleanrooms do not need to be as strict as injectable pharmaceuticals, but they remain essential for product quality, consumer safety, and export compliance. Sensible ISO 22716-aligned investment from the design stage helps Vietnamese cosmetics plants enter global OEM supply chains sustainably.

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About Green Filter

Green Filter supplies Pre, Medium F6-F9, HEPA H13, and stainless-steel FFUs suitable for cosmetics plants — withstanding alcohol cleaning and chemical decontamination. Green Filter's team is ready to advise on plant zoning and filter chains per ISO 22716.

📞 Contact Green Filter for filter consulting for your cosmetics plant: [insert hotline / email / website]

See also: GMP cleanrooms for pharma plants · Cleanrooms for food & beverage · How to choose HEPA/ULPA by cleanroom class.