PROBLEM TO BE SOLVED: To provide an aerosol particle collecting device and a vial adapter that can reduce the possibility of exposure of a drug while securing air permeability.SOLUTION: An aerosol particle collecting device 100 according to the present invention is for collecting aerosol particles having passed through a ventilation filter 211 included in a vial adapter, and is provided with a passage 113 through which the aerosol particles having passed through the ventilation filter flow spirally along a wall surface.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】通気性を確保しつつ、薬剤の曝露の可能性を低減できるエアロゾル粒子捕集装置及びバイアルアダプタを提供する。【解決手段】本発明のエアロゾル粒子捕集装置100は、バイアルアダプタが備える通気フィルタ211を通過したエアロゾル粒子を捕集するためのエアロゾル粒子捕集装置であって、前記通気フィルタを通過した前記エアロゾル粒子が壁面に沿って螺旋状に流れる流路113を設けたことを特徴とする。【選択図】図5
