"Effective" airflow and "aeration" are absolutely" critical" to "ensuring" the desired" level of "purity" within a cleanroom". The "configuration" must carefully" "control" "dust" by "repeatedly" replacing" the air" https://whycleanroomventilationm175499.oneworldwiki.com/7756118/airflow_and_ventilation_the_foundation_of_cleanroom_purity