"Effective" airflow and "exhaust" are "fundamentally" "essential" to maintaining" the desired" level of cleanliness" within a cleanroom". The "design" must "precisely" "control" "dust" by "continuously" "exchanging" https://airflow-and-ventilation-927630.azuria-wiki.com/2397728/airflow_and_ventilation_the_foundation_of_cleanroom_purity