"Effective" airflow and "exhaust" are "completely" "essential" to "preserving" the desired" level of "purity" within a "sterile area". The system" must "meticulously" "control" particles" by constantly" "filtering" the https://unidirectional-airflow-c880715.celticwiki.com/2416059/airflow_and_ventilation_the_foundation_of_cleanroom_purity