CLEAN ROOM Russian patent published in 2004 - IPC

FIELD: ventilation and conditioning of closed rooms, in which it is necessary to protect the interior or ambient air against dust and microorganisms, bacterial infections inclusive, providing with maximum comfortable conditions for people; the invention may be used in extraordinary situations, for example, at individual or collective protection against bacteriological weapon or radioactive dust, in electronics, fine mechanics, food industry and especially in medicine-pharmaceutics, blood-transfusion stations, clean operation rooms, etc. SUBSTANCE: clean room includes the working entity isolated from the environment, air conduit for delivery of clean air with a fan and fine filters successively installed in it, exhaust air conduit, exhaust air filters and a diffusion gas exchanger installed outside the working entity. In addition, the room has an air preparation room connected to it through the air delivery and exhaust conduits, in which a diffusion gas exchanger, air- conditioner, exhaust air filters are installed at the inlet of the exhaust air conduit, forced- draught fan at the inlet of the clean air delivery conduit. EFFECT: enhanced convenience of servicing of the process equipment participating in the process of air cleaning and renewal, reduced level of noise both in the working zone and outside the clean room, complete or partial discharge from the working entity of exhaust air and replacement of it by air environing the clean room, as well as enhanced quality of prepared air. 8 cl, 1 dwg