An assembly for an inhalation device (1) is provided, wherein the assembly comprises a storage chamber (15) configured to hold a quantity of a substance (2), a metering element (33) configured to be moved in a moving direction with respect to the storage chamber (15), and a sealing member (31) mechanically cooperating with the metering element (33), wherein the sealing member (31) comprises an opening (20) which receives the metering element (33), and wherein the sealing member (31) comprises at least one sealing lip (81) which is deflectable in a direction corresponding to the moving direction of the metering element (33). Furthermore, the use of a sealing member (31) for mechanical cooperation with a metering element (33) of an inhalation device (1) is provided, wherein the sealing member (31) comprises an opening (20) which receives the metering element (33), and wherein the sealing member (31) comprises at least one sealing lip (81), wherein the sealing lip (81) is configured to be deflected in a direction corresponding to a moving direction of the metering element (33).本發明係提供一吸入裝置(1)之一組件,其中組件包含一儲存腔室(15),其組構以固持一數量的一物質(2),一計量元件(33),其組構以在一移動方向相對於儲存腔室(15)被移動,及一密封構件(31),其與計量元件(33)機械性合作,其中密封構件(31)包含一用以接收計量元件(33)之開口(20),且其中密封構件(31)包含至少一密封唇(81),其可在一方向偏向,該方向對應於計量元件(33)的移動方向。尚且,提供一用於與一吸入裝置(1)的一計量元件(33)機械性合作之密封構件(31)之用途,其中密封構件(31)包含一用以接收計量元件(33)之開口(20),且其中密封構件(31)包含至少一密封唇(81),其中密封唇(81)係組構以在對應於計量元件(33)的一移動方向之一方向被偏向。18‧‧‧遠末方向19‧‧‧近鄰方向20‧‧‧開口26‧‧‧頂表面27‧‧‧底表面31‧‧‧密封構件32‧‧‧主體部33‧‧‧計量元件40‧‧‧計量腔室81‧‧‧密封唇mx‧‧‧計量元件的縱向軸線
