"Proper" airflow and "aeration" are "fundamentally" critical" to "preserving" the desired" level of "purity" within a "sterile area". The "design" must "meticulously" "control" particles" by constantly" "exchanging" https://cleanroomventilationguid342622.tnpwiki.com/433396/airflow_and_ventilation_the_foundation_of_cleanroom_purity