A breath actuated inhaler for delivering medicament by inhalation,
comprising a housing having a mouthpiece and defining an air flow path
extending from the mouthpiece through the housing; the housing holding a
replaceable canister of medicament actuatable to deliver a dose of
medicament into the air flow path, wherein the housing defines an opening
in the air flow path and the opening is closed by a closure element
connected to and replaceable with the canister. The closure element acts
as a safety feature because it is only closed when the inhaler is used
with a canister to which a closure element is connected the closure
element carries an indication of the type of medicament in the canister to
allow the user to recognise the type of medicament. A plurality of
inhalers may be provided in which each given inhaler has an opening with a
different shape and has a closure element with a shape which conforms with
the opening of the given inhaler but which does not conform with the
openings of the other inhalers.
