A: In a recirculating cleanroom the air passes over and over thru the HEPA fan filter units. This makes the air cleaner and cleaner as well as extending the life of the HEPA fan filter units.
A: Recirculating cleanrooms typically have their own air conditioning systems . This allows for temperature and humidity control. In a recirculating cleanroom the air passes thru the HEPA fan filter units over and over . This makes the air cleaner and cleaner as well as extending the life of the HEPA fan filter units.
A: Typically one pass cleanrooms are lower cost than recirculating cleanrooms as they do not include air conditioning.
A: They cannot really accommodate AC so you cannot control temperature of cleanroom. Workers inside where cleanroom suits can get very hot. Also One pass cleanrooms draw outside unfiltered air thru the HEPA fan filter units so they typically cannot achieve same level of cleanliness as recirculating rooms. Finally the HEPA fan filter units have significantly shorter life in one pass cleanrooms as they are constantly drawing dirt from the outside into the filter.
A: Softwall cleanroom use clear vinyl curtains to form the walls of the cleanroom. They are almost always designed as one pass cleanrooms. The air exhausts underneath the curtain at the floor level to outside of cleanroom.