"Adequate" airflow and "exhaust" are absolutely" "essential" to "preserving" the desired" level of cleanliness" within a cleanroom". The "design" must "precisely" "regulate" "contaminants" by "continuously" https://cleanroomventilationguid872944.buscawiki.com/2449578/airflow_and_ventilation_the_foundation_of_cleanroom_purity