How is environmental monitoring in cleanrooms managed under CBM T6, and what actions occur with deviations?

• A. Temperature, humidity, airflow, particulates; deviations trigger investigations and CAPA.
• B. Only temperature.
• C. Lighting levels only.
• D. Noise levels only.

Answer: (A)

Environmental monitoring in cleanrooms tracks the key environmental parameters that directly affect product quality and contamination risk: temperature, humidity, airflow (including differential pressure and filtration performance), and particulates. Keeping these within defined limits helps maintain the sterile, particulate-controlled environment required for reliable manufacturing or testing. When any reading or parameter drifts outside the specified range, a formal investigation is triggered to determine the root cause and assess potential impact on the process and product. From there, corrective and preventive actions (CAPA) are put in place to fix the immediate issue and prevent recurrence, which can include adjusting HVAC controls, recalibrating sensors, maintaining filtration systems, retraining personnel, and requalifying the space if needed. Lighting or noise levels aren’t the primary focus of environmental monitoring in cleanrooms, and monitoring only temperature would miss other critical factors that influence cleanliness and compliance.