Abstract: Deodorising-perfuming device applicable to an internal air vent of a vehicle; the device comprises an outer casing having at least one rear inlet aperture, and at least one outlet aperture defining a flow path for an air stream. An open container for a deodorising and/or perfuming gel substance in a solid form, is disposed inside the outer casing; a manually operable control means allows a gradual withdrawal of the deodorising/perfuming gel substance from the inner container for its progressive exposure to the air flow.