PROBLEM TO BE SOLVED: To provide an air cleaner by which the cleaning, maintenance and inspection of a storage tank can be easily performed from above.SOLUTION: A fan device 3, an air duct 4 and a storage tank 5 are arranged in a casing 2, the casing 2 has an opening part communicating with the inside and outside, and a door which opens and closes the opening part. The fan device 3 introduces outside air into the air duct 4 from an intake port 11 by keeping the inside of the air duct 4 at negative pressure, and discharges air in the air duct 4 to the outside from an exhaust port 12, a spray device 21 which sprays a cleaning liquid 19 stored in the storage tank 5 is arranged in the air duct 4, the cleaning liquid 19 sprayed into the air duct 4 is collected to the storage tank 5 from the spray device 21, and the air duct 4 is located above the storage tank 5, supported by the casing 2 so as to be releasable, and freely enters and goes out of the casing 2 via the opening part.COPYRIGHT: (C)2015,JPO&INPIT【課題】貯留槽の清掃や保守点検を上方から容易に行うことが可能な空気清浄機を提供する。【解決手段】ケーシング2内にファン装置3と風洞4と貯留槽5とが設けられ、ケーシング2は、内外に連通する開口部と、開口部を開閉する扉とを有し、ファン装置3は、風洞4内を負圧に保つことにより、外気を吸気口11から風洞4内に導入させるとともに、風洞4内の空気を排気口12から外部へ排出させ、風洞4内に、貯留槽5に貯留された浄化用液19を噴霧する噴霧装置21が設けられ、噴霧装置21から風洞4内に噴霧された浄化用液19が貯留槽5に回収され、風洞4は、貯留槽5の上方に位置し、ケーシング2に離脱自在に支持され、開口部を通してケーシング2の内外に出し入れ自在である。【選択図】図1