PROBLEM TO BE SOLVED: To provide a space sterilizer adjusting the concentration of gaseous hypochlorous acid emitted to an indoor space in a short time in accordance with the combination between a necessary air volume and the concentration of hypochlorous acid gas, in the vaporization type space sterilizer performing sterilization by evaporating the gas of the hypochlorous acid.SOLUTION: A partition wall 23 includes: an opening 24 making a ventilation path 5 of a suction port 3 and a ventilation path on a side of a blowout port 4 communicate with each other at a position nearer to a blower 6 than to a filter 7； and a ventilation path switching device 11 opening/closing the opening 24. Therefore, a part of air taken in from the indoor space can be discharged indoors through the blowout port 4 without coming in contact with the filter 7. Specifically, the amount of air flowing to a side of the filter 7 with strong air passage resistance can be easily adjusted because having such a constitution as to open/close the opening 24 at a position nearer to the blower 6 than to the filter 7. The opening 24 is opened/closed by a ventilation passage switching device 11, and as a result, a contact ratio between the air taken in from the indoor space and the filter 7 is changed.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】次亜塩素酸の気体を揮発させ殺菌を行う気化式の空間殺菌装置において、必要とされる風量と次亜塩素酸ガスの濃度との組み合わせに応じて、室内空間へ放出する気体状の次亜塩素酸の濃度を、短時間で調節することができる空間殺菌装置を提供する。【解決手段】隔壁２３には、フィルタ７よりも送風装置６に近い位置で吸気口３の通風路５と吹出口４側の通風路を連通させる開口２４と、該開口２４を開閉する通風路切替装置１１とを備えたことで、室内空間より取り込んだ空気の一部をフィルタ７に接触させることなく、吹出口４より室内へ放出することができる。特に、フィルタ７よりも送風装置６に近い位置で開口２４を開閉する構成としたので、風路抵抗の大きなフィルタ７側へ流す空気の量を容易に調整することができる。通風路切替装置１１によって開口２４の開閉を行うと室内空間より取り込んだ空気とフィルタ７との接触率を変更する。【選択図】図２
