"Adequate" airflow and "exhaust" are "fundamentally" critical" to "ensuring" the "required" level of "purity" within a "controlled environment". The system" must "precisely" "regulate" "contaminants" by "continuously" https://cleanroom-ventilation-gu532743.wikikarts.com/2362024/airflow_and_ventilation_the_foundation_of_cleanroom_purity