Nebulizer

A nebulizer (1) for a fluid (2), comprising:

• a container (3) containing the fluid (2), the container (3) being elongate and defining a longitudinal axis of the nebulizer;
• a delivery mechanism for dispensing the fluid (2) including:
• (i) a pressure generator (5) in communication with the container (3) and receiving the fluid (2) therefrom, (ii) a holder (6) engaging the container (3), and controlling translational movement of both the container (3) and at least part of the pressure generator (5) along the longitudinal axis of the nebulizer, and (iii) a drive spring (7) engaging the holder (6), being settable in a tensioned state in which the drive spring (7) is compressed and ready, upon release, to move the holder (6) and to drive the translational movement of the container (3) and the at least part of the pressure generator (5) along the longitudinal axis of the nebulizer such that the pressure generator produces sufficient pressure to the fluid (2) for atomization and discharge of the fluid (2) from the nebulizer, and after the release is complete resting at a non-tensioned state in which the drive spring (7) has released the compression;
• and
• an indicator device (73) for indicating whether the nebulizer is in the tensioned state or the non-tensioned state, where the indicator device (73) comprises a moveable indicator element (74) and a window (78) through which a user may see at least part of the indicator element (74), and where the indicator element (74) pivots between a first position indicating the tensioned state and a second position indicating the non-tensioned state.