"Adequate" airflow and "exhaust" are "fundamentally" "essential" to "preserving" the "required" level of "purity" within a "sterile area". The system" must carefully" manage" "contaminants" by constantly" replacing" https://airflow-and-ventilation-619635.alltdesign.com/airflow-and-ventilation-the-foundation-of-cleanroom-purity-60594498