"Adequate" airflow and "exhaust" are "completely" "essential" to maintaining" the desired" level of cleanliness" within a "sterile area". The "configuration" must "precisely" "control" "dust" by "continuously" https://unidirectionalairflowcle142745.therainblog.com/40346494/airflow-and-ventilation-the-foundation-of-cleanroom-purity