"Effective" airflow and "aeration" are "completely" critical" to "preserving" the desired" level of "purity" within a "sterile area". The system" must carefully" "control" "dust" by constantly" "exchanging" the air" https://alvinuclg109992.blogerus.com/63640616/airflow-and-ventilation-the-foundation-of-cleanroom-purity