PROBLEM TO BE SOLVED: To provide a deodorizing device and a deodorizing method, capable of deodorizing the offensive odor caused by excreta of domestic animals in a barn.SOLUTION: A deodorizing chemical spray device 10 and a deodorizing chemical spray method include: dilution means 11 which creates a diluent by diluting a mineral-including chemical with a tap water to a prescribed concentration liquid delivery means 12 which delivers the diluent to a plurality of barns spray means 13 which sprays the diluent from the inner top of the barns to the floor in a state of drizzling rain and control means 14 which controls the dilution means 11, the liquid delivery means 12, and the spray means 13. According to the control means 14, the diluent is created with the dilution means 11, and the spray means 13 is driven through the liquid delivery means 12, so that the diluent is sprayed in the barns.COPYRIGHT: (C)2015,JPO&INPIT【課題】畜舎での家畜等の糞尿による悪臭を消臭することができる消臭装置及び消臭方法を提供すること。【解決手段】ミネラルを含む薬液を上水道水で所定濃度に希釈して希釈液を生成する希釈手段11と、希釈液を複数の畜舎に送液する送液手段12と、希釈液を畜舎内上部から床部に小雨状にして散布する散布手段13と、希釈手段11、送液手段12及び散布手段13を制御する制御する制御手段14と、を配設し、制御手段14は、希釈手段11で希釈液を生成し、送液手段12を介して散布手段13を駆動して畜舎内に散布するように制御することを特徴とする消臭用薬液散布装置10及び消臭用薬液散布方法である。【選択図】図1