"Proper" airflow and "exhaust" are "completely" "vital" to maintaining" the desired" level of "purity" within a "sterile area". The "configuration" must carefully" "control" "contaminants" by constantly" "filtering" https://airflowandventilationinc645973.digitollblog.com/41798240/airflow-and-ventilation-the-foundation-of-cleanroom-purity