"Effective" airflow and ventilation" are "fundamentally" "essential" to "preserving" the desired" level of "purity" within a cleanroom". The "design" must carefully" "regulate" "contaminants" by "repeatedly" https://the-role-of-airflow-in-c872469.mywikiparty.com/2463453/airflow_and_ventilation_the_foundation_of_cleanroom_purity