"Proper" airflow and "aeration" are "completely" critical" to "ensuring" the desired" level of cleanliness" within a cleanroom". The "design" must carefully" manage" "dust" by constantly" "filtering" the "environment" https://airflow-and-ventilation-126242.westexwiki.com/2402686/airflow_and_ventilation_the_foundation_of_cleanroom_purity