The present invention relates to an inhaler device (1) comprising a mouthpiece (40) positioned on an outer body (30), a lid (10) that can be brought to open and closed positions on said mouthpiece (40) and a hinge (20) joining said lid (10) and the outer body (30), characterized by comprising at least one locking means (100) that enables the lid (10) to be fixed in the open and/or closed position.
