"Adequate" airflow and "exhaust" are "fundamentally" critical" to maintaining" the desired" level of cleanliness" within a cleanroom". The system" must "precisely" manage" "contaminants" by "repeatedly" "exchanging" https://theroleofairflowincleanr829263.tdlwiki.com/2432331/airflow_and_ventilation_the_foundation_of_cleanroom_purity