PROBLEM TO BE SOLVED: To provide a fan type chemical diffusing device preventing early-stage deterioration of chemicals retained by a chemical retainer by solar light and easily mounting the chemical retainer in a device body.SOLUTION: An outlet 4 and an inlet 5 are formed at the side face 1b of the device body 1 of which the surface 1a is closed, to prevent easy application of solar light to the chemical retainer 20, the device body 1 is formed with a blower storage chamber 2 and a storage recess 3, and the storage recess 3 is communicated to the blower storage chamber 2 and opened to the back face 1c. A storage body 10 is demountably fitted and mounted in the storage recess 3, and the chemical retainer 20 is demountably mounted in the storage recess 3. Therefore, the chemical retainer 20 is mounted in the storage body 10, and the storage body 10 is mounted in the storage recess 3 with the chemical retainer mounted in the storage body, so that the chemical retainer 20 can be easily mounted in the device body 1.COPYRIGHT: (C)2012,JPO&INPIT【課題】薬剤保持体が保持している薬剤が太陽光で早期に劣化することがないと共に、その薬剤保持体を装置本体に簡単に取付けできる送風式薬剤放散装置とする。【解決手段】表面1aが閉塞された装置本体1の側面1bに放出口4と吸込口5を形成して薬剤保持体20に太陽光が照射され難く、その装置本体1に送風機収納室2と収納凹部3を形成し、その収納凹部3は送風機収納室2に連通すると共に、裏面1cに開口し、この収納凹部3に収納体10を着脱自在に嵌合して取付け、その収納凹部3に薬剤保持体20を着脱自在に取付けることで、その収納体10に薬剤保持体20を取付け、その状態で収納体10を収納凹部3に取付けることによって、薬剤保持体20を装置本体1に簡単に取付けできる。【選択図】図4