A biological safety cabinet must be tested and certified under which circumstance?

A biological safety cabinet is a critical piece of equipment designed to protect personnel, the environment, and the product from contamination while handling biohazardous materials. For maintaining its effectiveness and safety, the cabinet must be subjected to thorough testing and certification.

Testing upon initial installation is essential to verify that the cabinet was correctly set up and functioning as intended. This ensures all safety features are operational from the outset.

If the cabinet is moved or repaired, it may become compromised, which can alter airflow patterns or other crucial operational parameters. Testing after moving or repairs confirms that it still meets required safety standards.

Annual testing is important because it provides ongoing assurance that the biological safety cabinet continues to function effectively over time. Regular assessments help in identifying any wear, mechanical issues, or changes that could impact its performance.

Therefore, the requirement for testing and certification at multiple stages—initial installation, after maintenance activities, and on an annual basis—supports the overall safety and functionality of the cabinet and confirms compliance with safety standards.