PROBLEM TO BE SOLVED: To provide a more compact inactivating treatment device capable of inactivating an infection source in a non-contact manner even outdoors. SOLUTION: An anterior chamber portion 2 connected to the entrance side of a processing unit 3, an inlet portion 1 surrounding the front chamber entrance side opening 25, an outlet portion 4 surrounding the processing unit exit side opening 36, and an exit portion 4 to be processed. A detection sensor 86 for detecting a body is provided, and the detection sensor 86 is arranged at an inlet portion 1 so as to be able to detect the entry of an object to be processed into the inlet portion 1, and a control unit 80 is a detection sensor. The pump 85 is operated at the timing when the detection signal for detecting the entry of the object to be processed into the inlet portion 1 is given from the 86, and the treatment liquid is sprayed into the processing unit 3 from the nozzles 84, 84, ... It is done like this. The object to be processed enters the processing unit 3 filled with the mist of the processing liquid. [Selection diagram] Fig. 2【課題】 屋外においても感染源を非接触で不活化処理し得、よりコンパクトな不活化処理装置を提供する。【解決手段】 処理部３の入側に連設した前室部２と、前室入側開口２５を囲繞する入口部１と、処理部出側開口３６を囲繞する出口部４と、被処理体を検知する検知センサ８６とを備え、検知センサ８６は入口部１に、当該入口部１内への被処理体の進入を検知し得るように配設してあり、制御部８０は検知センサ８６から、入口部１内への被処理体の進入を検知した検知信号が与えられたタイミングでポンプ８５を作動させて、各ノズル８４，８４，…から処理部３内へ処理液を噴霧させるようになしてある。被処理体は、処理液のミストで充満された処理部３内へ進入する。【選択図】 図２
