"Proper" airflow and "exhaust" are "completely" critical" to "preserving" the "specified" level of "sterility" within a cleanroom". The system" must "meticulously" "regulate" "contaminants" by "repeatedly" "filtering" https://tiffanycoss009150.blogzet.com/airflow-and-ventilation-the-foundation-of-cleanroom-purity-56727372