"Proper" airflow and "exhaust" are absolutely" "essential" to "ensuring" the "specified" level of cleanliness" within a "sterile area". The system" must "meticulously" manage" particles" by "continuously" "filtering" https://non-unidirectional-airfl878764.wikipublicity.com/8844125/airflow_and_ventilation_the_foundation_of_cleanroom_purity