Cleanroom Cleaning Procedures: Transfers to Controlled Environments
Key Takeaways:
- A risk-based approach links rinse analysis and visual checks to surface cleanliness.
- The FDA’s validation model ensures structured cleaning process design and verification.
- Controlled studies define residue limits using light intensity, angle and variability.
- TOC and conductivity testing confirm surface cleanliness and cleaning effectiveness.
- Continuous monitoring reduces testing while ensuring compliance and product safety.
Cleanrooms provide a contamination-free environment for biotechnology and pharmaceutical testing and manufacturing. However, maintaining a controlled environment is challenging.
The transfer of materials into a cleanroom is one of the primary sources of cleanroom contamination. Keeping the product clean during transfer has several challenges:
- Not everything going into the cleanroom is sterile
- Not everything can be steam sterilized for entry
- Sterilized materials may still need to be cleaned to reduce contamination on packaging
That’s why a material transfer process is key. Setting a cleaning protocol for surfaces, packaging, products, and trolleys during transfer helps control cleanroom contamination.
Just as important as cleanroom cleaning procedures is using the right cleanroom solutions.
Here are several products from STERIS Life Sciences that are proven to be effective solutions in a contamination control strategy for material transfer into cleanroom environments.
Cleanroom Solutions for Transferring Materials to Controlled Environments
Spor-Klenz® Ready-To-Use ETO Sterilant
Active Ingredient
Sporicidal
Yes
Sterile Packaging
Yes
Terminally Sterilized
Yes
Diluted With
Spor-Klenz® Ready-To-Use Cold Sterilant
Active Ingredient
Sporicidal
Yes
Sterile Packaging
No
Terminally Sterilized
No
Diluted With
See Full Table
6% Hydrogen Peroxide WFI Sterile Solution
Active Ingredient
6% Hydrogen Peroxide
Sporicidal
Possibly
Sterile Packaging
Yes
Terminally Sterilized
No
Diluted With
USP WFI
0.525% Hypochlorite WFI Sterile Solution
Sporicidal
Possibly
Sterile Packaging
Yes
Terminally Sterilized
No
Diluted With
USP WFI
Septihol® WFI Sterile Alcohol Solution
Active Ingredient
70% Isopropanol
Sporicidal
No
Sterile Packaging
Yes
Terminally Sterilized
Yes
Diluted With
USP WFI
Septihol® Ethyl WFI Sterile Alcohol Solution
Active Ingredient
62% Ethanol
5% Isopropanol
3%Methanol
Sporicidal
No
Sterile Packaging
Yes
Terminally Sterilized
Yes
Diluted With
USP WFI
Septihol® Sterile Alcohol Solution
Active Ingredient
70% Isopropanol
Sporicidal
No
Sterile Packaging
Yes
Terminally Sterilized
Yes
Diluted With
USP PW
Download 7 Cleanroom Solutions for Transferring Materials to Controlled Environments for more information about maintaining a controlled environment from STERIS Life Sciences.
Suggested Content
A Refresher On Disinfectant Wet Contact Time
Common Myths: Disinfectant Cleaning in Controlled Environments
Effective Sterile Powder Transfer for Parenteral Drug Products
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