Airflow visualization studies (AVS) (also known as smoke studies) are an integral part of contamination control practices in GMP-controlled aseptic processing plants. As per regulatory guidelines such as the FDA’s 2004 Guidance on Aseptic Processing (here), USP <1116> (here), and PDA Technical Reports 13 (here), 22 (here), and 34 (here), these studies enable the measurement […]