PROBLEM TO BE SOLVED: To provide an air-purifying apparatus in which a drainage tank is eliminated to simplify the configuration of the apparatus, thereby shortening the time period taken to clean a medial agent.SOLUTION: An air-purifying apparatus comprises: a housing 500 having an air passage for cleaning, through which air to be disinfected flows from upstream to downstream； a spray device 53 which sprays a bactericide solution into air 51 to be disinfected, which is flowing through the air passage 52； a circulating tank 54 for receiving the bactericide solution falling from the air passage 52； a circulating system 55 for feeding to the spray device 53 the bactericide solution of the circulating tank 54； a medical agent-feeding system 56 for feeding the bactericide solution to the circulating tank 54； and a dilution water-feeding system 563 for feeding a dilution water for diluting the bactericide solution. The medial agent-feeding system 56 comprises two feeding parts: a feeding part 564 for preparation and a feeding part 564 for refilling, both of which feed a disinfectant solution from a supply source.SELECTED DRAWING: Figure 1【課題】排水槽をなくして装置構成の簡素化を図るとともに、薬剤洗浄を短時間で実施することができる空気清浄装置を提供する。【解決手段】除菌対象空気が上流側から下流側に流れる浄化用通気路を有するハウジング５００と、浄化用通気路５２を流れる除菌対象空気５１に殺菌剤溶液を噴霧する噴霧装置５３と、浄化用通気路５２から降下する殺菌剤溶液を受け止める循環槽５４と、循環槽５４の殺菌剤溶液を噴霧装置５３に供給する循環系５５と、循環槽５４に殺菌剤溶液を供給する薬剤供給系５６と、殺菌剤溶液を希釈する希釈用水を供給する希釈用水供給系５６３を備え、薬剤供給系５６は、供給源から殺菌剤溶液を供給する調製用供給部５６４と補給用供給部５６４の２つの供給部を有する。【選択図】図１
