"Proper" airflow and "aeration" are "completely" "vital" to maintaining" the "specified" level of "purity" within a cleanroom". The "configuration" must carefully" "control" "contaminants" by constantly" "filtering" https://whycleanroomventilationm642110.celticwiki.com/2412850/airflow_and_ventilation_the_foundation_of_cleanroom_purity