"Proper" airflow and "exhaust" are "completely" critical" to "preserving" the "specified" level of cleanliness" within a cleanroom". The "configuration" must "meticulously" "control" particles" by constantly" https://the-role-of-airflow-in-c327929.wikiexcerpt.com/4587891/airflow_and_ventilation_the_foundation_of_cleanroom_purity