To solve the problem that it is difficult to stir up dust on a whole floor of a room and dust on only a part of the floor of the room is stirred up when air is blown while swinging only in a vertical direction when no one is in the room.
A dust collecting device for a room is provided with: an air-blowing means 7 that is installed in the room and changes the wind direction and wind volume and generates air flow in the room; and a dust collecting means 8 that recovers dust by suction and generates air flow by exhaust in the room. The air-blowing means and the dust collecting means are cooperatively controlled for air-blowing operation when no one is in the room, and air is blown while changing the blowing direction every predetermined time so that dust fallen on a floor can be efficiently collected with a dust collection air flow 10 formed in the room and circulating.
FUKUMOTO MASAMI
UMEKAGE YASUHIRO
KUROYAMA KAZUHIRO
KURIHARA HIROAKI
MIKI TADASHI
Daisuke Nagano
Kentaro Fujii