INHALERS AND HOUSING CAPS FOR INHALERS

摘要

An inhaler (10) for inhalation into the airway of a user, the inhaler (10) having a housing (12) at least partially defining a flow passageway (36) extending through the inhaler (10) from an air inlet to an outlet, the inhaler (10) comprising a valve (56) for selectively restricting the flow passageway.