<；P>；PROBLEM TO BE SOLVED: To provide an air conditioning system and a chamber capable of supplying clean air to respective rooms of a dwelling house by a simple constitution. <；P>；SOLUTION: In this air conditioning system 100, a blowoff port 3a of an indoor unit 2 of a second floor and conditioned air blowoff openings 35 formed in the respective rooms of the dwelling house 200 are connected to each other by a second floor branch duct 33, and the conditioned air supplied to the respective rooms through the second floor branch duct 33 is returned to a suction port of the indoor unit 2 of the second floor to perform air conditioning. A second floor branch chamber 32 for causing the conditioned air conditioned by the indoor unit 2 of the second floor to branch and delivering the air to the blowoff openings 35 is interposed in the second floor branch duct 33 connecting the blowoff port 3a and the blowoff openings 35, and the second floor branch chamber 32 includes an air disinfection device 60 having an air disinfection part for bringing electrolytic water generated by electrolyzing water and the conditioned air into contact with each other to disinfect the air. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
