(57) [summary] [purpose] big purification processing power, can be installed without having to take up space in the room, also, odor, toxic gases can be processed, and further can be used to provide even excellent air purifier in terms of energy saving . [Configuration] disposed ceiling above, the housing 9 of the suction opening 11 and air outlet 13 is opened, an air passage 29 extending from the suction port 11 in the housing 9 to the air outlet 13, and high to the air passage 29 and set by fan 33, 35, a filter 37,39,47 disposed in the air passage 29, and a duct for connecting the suction port 11 of the suction port and a housing 9 which is open to the ceiling, it was opened to the ceiling air outlet and housing 9 Me and a duct that connects the air outlet 13.
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