"Effective" airflow and "exhaust" are absolutely" "essential" to "ensuring" the "specified" level of cleanliness" within a cleanroom". The "design" must "meticulously" "regulate" particles" by "repeatedly" "filtering" https://unidirectional-airflow-c345652.gigswiki.com/6555131/airflow_and_ventilation_the_foundation_of_cleanroom_purity