A delivery device (100,200) is disclosed, which comprises a container (80) containing a dose of a powder, a chamber (110) adapted to receive the container (80), at least one gas inlet (26) by which gas may enter the chamber (110), and at least one gas outlet (72) by which gas and entrained powder may exit the chamber (110) for inhalation, the delivery device (100,200) having a pre-use configuration in which the container (80) is accommodated, at least partially, within a storage enclosure in a wall of the chamber (110), the delivery device (100,200) having a deployment member (60) adapted to put the delivery device (100,200) in an operative configuration by displacing the container (80) from the storage enclosure into the chamber (110), such that the container (80) is movable within the chamber (110), in use, the deployment member (60) being adapted to at least partially occupy the storage enclosure in the operative configuration.
