Verify Powder-Free Gloves in Sterile GMP Zones to Prevent Contamination

Ensure Gloves Used in Sterile Areas Are Certified Powder-Free

Remember: Always verify that gloves worn in sterile GMP areas are powder-free — even trace residues can compromise aseptic operations.

Why This Matters in GMP

Gloves serve as a critical barrier between personnel and product in sterile environments. Powdered gloves — even if sterilized — are a potential source of particulate and microbial contamination. The cornstarch or calcium carbonate used in powdered gloves can disperse into the air, settle on product-contact surfaces, or interfere with HEPA airflow patterns. These particulates may carry microbes, compromise filter integrity, and introduce contamination into aseptic operations.

Also Read: Develop Comprehensive User Requirement Specifications (URS) for GMP Equipment

Even more concerning is the risk of these particles adhering to primary packaging or exposed product components, especially during aseptic filling or visual inspection. Powder contamination is not visible to the naked eye once dispersed, making it a hidden but significant GMP hazard. In worst-case scenarios, powder residues can trigger particulate matter recalls or FDA Form 483 observations during sterile facility inspections.

Regulatory and Compliance Implications

21 CFR Part 211.28 requires that personnel wear garments, including gloves, that prevent contamination. EU GMP Annex 1 mandates that gloves used in sterile areas must be validated

for aseptic use and free from particles or residues. WHO GMP further states that glove materials must be non-shedding and compatible with cleanroom operations.

Also Read: Prevent Unfiltered Air Entry into Grade A/B GMP Zones

During audits, inspectors often check the specifications of gloves used in sterile zones, packaging labels, QA release documentation, and training protocols. Use of powdered gloves or absence of verification records for powder-free certification may result in observations. Multiple regulators, including the FDA, have issued recalls in the past due to particulate presence linked to glove residues.

Implementation Best Practices

Procure only certified powder-free sterile gloves from approved vendors. Include glove model numbers, lot numbers, and powder-free certification in the material specification file. Verify glove compliance upon receipt, and document QA review as part of material approval. Conduct periodic supplier audits to confirm ongoing compliance with powder-free standards.

Also Read: Never Mix Product Labels from Different Batches in the Packaging Area

Train all sterile area personnel to inspect glove packaging before use and to report any unapproved glove variants immediately. Store gloves in temperature- and humidity-controlled environments to prevent material degradation. Include glove type verification in gowning SOPs and routine audits of gowning behavior in aseptic zones.

Regulatory References

– 21 CFR Part 211.28 – Personnel hygiene and garments
– EU GMP Annex 1 – Manufacture of sterile medicinal products
– WHO TRS 961, Annex 6 – GMP for personnel protection
– ISO 14644-5 – Cleanroom Operations