PROBLEM TO BE SOLVED: To provide a chemical vaporizer improved in diffusibility.SOLUTION: A case 10 has a vent 11 over substantially the whole circumference of a side surface thereof. A chemical holder 21 is disposed in a case 10 and holds a chemical vaporized at normal temperature. The rotational power parts 31-34 release air containing the volatilized chemical from the chemical holder through the vent by rotating the chemical holder. The diffusion promoting part 40 is formed of two or more rolls of helical shaped louvers disposed at the vent 11 so as to surround the side surface of the case 10.COPYRIGHT: (C)2012,JPO&INPIT【課題】拡散性を向上させた薬剤揮散装置を提供する。【解決手段】筐体10は側面の略全周に亘り通気口11を有する。薬剤保持体21は筐体10内に配置され常温揮散性の薬剤を保持する。回転動力部31~34は薬剤保持体を回転させて薬剤保持体から揮散した薬剤を含む空気を通気口から放出させる。拡散促進部40は通気口11に筐体10の側面を取り巻くように配置された二巻以上の螺旋形状のルーバーからなる。【選択図】図6
