"Effective" airflow and "aeration" are "completely" "essential" to maintaining" the desired" level of "sterility" within a "sterile area". The "design" must "meticulously" "control" "contaminants" by "continuously" https://unidirectional-airflow-c778269.bmswiki.com/6185828/airflow_and_ventilation_the_foundation_of_cleanroom_purity