PROBLEM TO BE SOLVED: To provide a sterilization apparatus capable of efficiently performing sterilization work. A sterilizer sterilizes the ceiling by spraying a chemical solution from a nozzle 66N arranged behind the ceiling through an inspection port formed on the ceiling. The sterilization device uses the mounting rod 65 and the support base 64 for arranging the nozzle 66N above the sealing member 62, the sealing member 62 for sealing the inspection port, and the sealing member 62 to seal the inspection port. It has an installation member 60 including a holdable fixing member 61. Then, after the support base 64 is hooked on the state portion of the inspection port frame F4, the mounting rod 65 to which the nozzle 66N is attached is fixed to the support base 64. After that, with the sealing member 62 in contact with the lower surface of the ceiling plate C4, the fixing member 61 is pushed up and rotated to lock the hook plate 61a of the fixing member 61 to the upper end of the inspection port frame F4. .. As a result, the sealing member 62 seals the inspection port, and the sealing state is held by the fixing member 61. [Selection diagram] Fig. 6【課題】効率的に除菌作業を行なうことができる除菌装置を提供する。【解決手段】除菌装置は、天井に形成された点検口を介して天井裏に配置されるノズル６６Ｎから薬液を噴霧して天井裏を除菌する。除菌装置は、封止部材６２より上方においてノズル６６Ｎを配置する取付棒６５及び支持ベース６４と、点検口を封止する封止部材６２と、封止部材６２で点検口の封止状態を保持可能な固定部材６１とを備える設置部材６０を有する。そして、支持ベース６４を点検口枠Ｆ４の状態部に引っ掛けた後、ノズル６６Ｎが付けられた取付棒６５を支持ベース６４に固定する。その後、封止部材６２を天井板Ｃ４の下面に当接させた状態で、固定部材６１を押し上げて回転させることにより、固定部材６１のフック板６１ａを点検口枠Ｆ４の上端部に係止させる。これにより、封止部材６２が点検口を封止し、この封止状態を、固定部材６１によって保持する。【選択図】図６
