Patent ID: 7462213
Filing Date: 2008-12-09
Classification: F24F

Abstract:
1. A method of operating a plurality of clean rooms in a compound within common area of an enclosing building structure, each said clean room consisting of a portable enclosure including a generally rectangular open frame covered on its top wall and sidewalls by a flexible, substantially air impermeable sheet material, air supply blower means outside of and connected to the clean room for providing filtered air into the room, and an entrance means through a sidewall providing access to the clean room, the method comprising, arranging the clean rooms in a compound consisting of two parallel spaced rows of clean rooms with an access corridor therebetween and with the entrances to the clean rooms of each row opening into the access corridor, providing a plurality of blowers operably connected to each clean room for supplying clean filtered air into the respective clean rooms and permitting air to escape from the clean room beneath the sidewalls thereof, continuously operating the blowers to produce a clean air bubble consisting of a volume of air containing at least about 75% recirculated filtered air which has escaped from the clean rooms, and arranging the clean rooms and the blowers in a pattern wherein the clean air bubble created by each blower overlaps the clean air bubble produced by at least two other blowers whereby the entire compound of clean rooms is contained within the overlapping bubbles produced by the blowers.