PROBLEM TO BE SOLVED: To provide a non-aerosol type container for a volatilization agent with a simple configuration in which fluctuations in sustained release due to environmental conditions are small, and which can be safely disposed of.SOLUTION: There is provided a container 1 or 1a for a volatilization agent filled with a volatilization agent 40 including at least gas or liquid, and having volatility, which can slowly release the volatilization agent 40 in the container to the outside. The container includes a rubber-like elastic container 10 that can be filled with the volatilization agent 40 and has pores on the wall from which the volatilization agent 40 can be slowly released, and a plug 20 or 20a that is detachably inserted into an opening 11 formed at least one place of the rubber-like elastic container 10. The plug 20 or 20a includes a first expanded diameter part 23 or 26a that is a part making a resistance in the direction where the plug comes off from the opening 11, and expands the diameter in the direction of a volatilization agent filling part of the rubber-like elastic container 10 from the opening 11.COPYRIGHT: (C)2015,JPO&INPIT【課題】ノンエアゾールタイプで簡易な構成にて、環境条件による徐放量の変動が少なく、安全に廃棄可能な揮散剤用容器を提供する。【解決手段】本発明は、少なくとも気体若しくは液体を含み揮発性を有する揮散剤40を充填し、充填されていた揮散剤40を外部に徐放できる揮散剤用容器1,1aであって、揮散剤40を充填可能で、壁に揮散剤40を徐放可能な細孔を有するゴム状弾性容器10と、ゴム状弾性容器10の少なくとも1箇所に形成される開口部11に着脱可能に挿入される栓20,20aと、を備え、栓20,20aには、開口部11から抜ける方向に抵抗となる部分であって、開口部11よりゴム状弾性容器10の揮散剤充填部の方向に拡径する第1拡径部23,26aを有する揮散剤用容器1,1aに関する。【選択図】図1