"Proper" airflow and "aeration" are "fundamentally" "essential" to "ensuring" the "specified" level of "purity" within a "sterile area". The "design" must carefully" "regulate" "contaminants" by constantly" https://cleanroom-ventilation-gu874523.wiki-promo.com/1476973/airflow_and_ventilation_the_foundation_of_cleanroom_purity