PROBLEM TO BE SOLVED: To provide an indoor sterilizer that sterilizes bacteria or viruses filled in a room to float, and can reduce influence to human body.SOLUTION: An indoor sterilizer of the present invention comprises: an enclosure which can be attached to a wall of a room； a light source which is stored inside the enclosure and irradiates ultraviolet light； and an aperture member which is provided for a front face of the light source and narrows an irradiation range of the ultraviolet light to be irradiated. In the light source, a cross-sectional length in a height direction is larger than a cross-sectional length in a depth direction, the aperture member forms a plurality of slits and its surface is treated to have light absorbency, and the enclosure is installed at a position in an upper area of the wall of the room and higher than the height of a human.SELECTED DRAWING: Figure 1【課題】室内に充満して浮遊する細菌やウイルスを殺菌すると共に、人体への影響も低下できる室内殺菌装置を提供する。【解決手段】本発明の室内殺菌装置は、部屋の壁に取り付け可能な筐体と、前記筐体内部に格納されて紫外線を照射する光源と、前記光源の正面に設けられ、照射される前記紫外線の照射範囲を絞る絞り部材と、を備え、前記光源では、高さ方向の断面長さが奥行き方向の断面長さよりも大きく、前記絞り部材は、複数のスリットを形成すると共に当該表面を吸光処理しており、前記筐体は、部屋の壁の上方であって、人の身長より高い場所に設置される。【選択図】図１
