"Adequate" airflow and "aeration" are absolutely" "essential" to maintaining" the "specified" level of "sterility" within a "controlled environment". The "design" must carefully" "control" "contaminants" by https://the-role-of-airflow-in-c102383.westexwiki.com/2399484/airflow_and_ventilation_the_foundation_of_cleanroom_purity