A device for evaporating volatile substances including a solid body impregnated with volatile substances and a support for the solid body. The solid body includes a protrusion defining on the inside thereof a housing and the solid body includes a hole, inside of which the protrusion is placed, such that the device further includes a container to house a liquid which impregnates the solid body with volatile substances. The device allows the solid body to be correctly held in the support during the entire useful life thereof. Furthermore, due to the presence of the container with liquid, the user may know if the device is still evaporating the volatile substances correctly or if it must be replaced.
