"Proper" airflow and "exhaust" are "completely" "vital" to "preserving" the desired" level of "purity" within a cleanroom". The "design" must "meticulously" manage" "dust" by "repeatedly" "filtering" the "atmosphere" https://cleanroom-ventilation-gu469075.wikilima.com/2328834/airflow_and_ventilation_the_foundation_of_cleanroom_purity