"Adequate" airflow and "aeration" are "fundamentally" "vital" to "preserving" the "specified" level of "purity" within a "sterile area". The "configuration" must carefully" "regulate" "dust" by "repeatedly" "filtering" https://whycleanroomventilationm365756.oneworldwiki.com/7752666/airflow_and_ventilation_the_foundation_of_cleanroom_purity