"Proper" airflow and "exhaust" are "completely" "vital" to "preserving" the "specified" level of cleanliness" within a cleanroom". The "design" must "meticulously" "control" particles" by "repeatedly" "filtering" the https://cleanroom-ventilation-gu521290.wikibriefing.com/4380768/airflow_and_ventilation_the_foundation_of_cleanroom_purity