"Effective" airflow and "aeration" are "completely" critical" to "preserving" the "required" level of "sterility" within a "sterile area". The "configuration" must "precisely" manage" particles" by "repeatedly" https://theroleofairflowincleanr184264.wikicorrespondence.com/6960791/airflow_and_ventilation_the_foundation_of_cleanroom_purity