Why is it necessary to test the filter of the sterile workbench again after replacement?｜READY

After HEPA filter replacement, biosafety cabinets must be verified to ensure proper airflow performance and cleanliness.
Without post-replacement testing, improper airflow distribution or insufficient cleanliness may compromise operator safety and sample protection.

READY provides the following verification services after biosafety cabinet filter replacement:

■ Downflow Airflow Test
Verification of airflow velocity and uniformity within the work zone to ensure compliance with manufacturer specifications.

■ Illumination Test
Measurement of light intensity to confirm proper lighting conditions for safe and accurate operation.

■ Particle Cleanliness Test
Assessment of particle contamination levels to verify cleanliness of the work area after filter replacement.

Verification results can be used for maintenance confirmation, internal quality control, or audit documentation.
Acceptance criteria should be defined according to the user’s SOPs and operational requirements.

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