"Proper" airflow and "aeration" are "completely" "essential" to maintaining" the "specified" level of "purity" within a cleanroom". The "configuration" must carefully" manage" "contaminants" by constantly" "exchanging" https://why-cleanroom-ventilatio631269.magicianwiki.com/2300651/airflow_and_ventilation_the_foundation_of_cleanroom_purity