[Problem] To provide an inhalation device with a simple structure which is capable of easily separating a base sheet and a lid sheet. [Solution] The present invention is an inhalation device (20) which is capable of tearing off a lid sheet (12) from a base sheet (11) of a medicine holding sheet (10). The inhalation device (20) comprises a base spool (30) on which the base sheet (11) is wound, a lid spool (40) on which the lid sheet (12) is wound and an air piece (50) which is provided at a position opposing a blister (11a) of the base sheet (11) from which the lid sheet (12) has been separated and which has an inlet through which medicine passes. In the present invention, the air piece (50) has a wedge portion (51) which is inserted between the base sheet (11) and the lid sheet (12) at a separation point (60) where the lid sheet (12) separates from the base sheet (11).
