PROBLEM TO BE SOLVED: To provide a chemical volatilizer having improved interior properties. SOLUTION: A drug volatilizer 1 is inserted into a drug container 2 having an opening 40 at the upper part and a part on the other end side through the opening 40 so that a part on one end side protrudes from the opening 40. It includes one or more volatilizers 10. The drug container 2 includes a top surface 410 that surrounds the opening 40, and at least a part of the top surface 410 is formed as a mirror surface that reflects light. [Selection diagram] Fig. 1【課題】インテリア性を高めた薬剤揮散器を提供する。【解決手段】薬剤揮散器1は、上部に開口40を有する薬剤容器2と、一端側の一部が開口40から突き出るように他端側の一部が開口40から薬剤容器2に挿入される1又は複数の揮散体10とを備える。薬剤容器2は、開口40を囲む天面410を備えており、天面410の少なくとも一部は、光を反射する鏡面に形成されている。【選択図】図1