An objective of this invention is to provide a cartridge for inhaler having a novel structure and an inhaler. This invention provides a cartridge for inhaler. The cartridge includes a housing having a receiving space capable of receiving liquid, an air flow path and a partitioning member for partitioning the receiving space and the air flow path along a longitudinal direction, and a heater configured to enable heating of the liquid and disposed in the air flow path. The partitioning member has an opening which opens in a lateral direction so as to communicate the receiving space and the air flow path. The opening has an upstream-side opening edge and a downstream-side opening edge. The partitioning member has an upstream-side end and a downstream-side end. The distance between the upstream-side opening edge and the upstream-side end is shorter than the distance between the downstream-side opening edge and the downstream-side end.本發明提供一種具有新構造之吸嚐器用筒匣及吸嚐器。所提供之該筒匣係包含:具有可收容液體的收容空間、空氣流路、及沿長邊方向區隔收容空間與空氣流路的區隔構件之外殼;以及構成為可加熱液體,且配置在空氣流路內之加熱器。區隔構件係具有在短邊方向開口以使收容空間與空氣流路連通之開口部。開口部係具有上游側開口緣部及下游側開口緣部。區隔構件係具有上游側端部及下游側端部。上游側開口緣部與上游側端部之間的距離係小於下游側開口緣部與下游側端部之間的距離。32‧‧‧供液口36‧‧‧區隔構件36a‧‧‧第一面36b‧‧‧第二面36c‧‧‧下游側開口緣部36d‧‧‧上游側開口緣部36e‧‧‧下游側端部36f‧‧‧上游側端部36g‧‧‧下游部36h‧‧‧上游部L1、L2‧‧‧距離
