Send the following on WhatsApp
Continue to ChatIso Clean Room Classification / ILC Dover builds ISO Class 7 cleanroom - Vekamaf industry ... : Cleanrooms are classified by how many particles are in the air, as well as how big those particles are to comply with iso standard, each classification requires a different air changes/hour, room velocity and filter coverage, ranging from iso 3 (class1). - https://netcasafa.blogspot.com/2021/05/iso-clean-room-classification-ilc-dover.html