NOVELTY - Electronic smoking substitutive device comprises a tubular body (2) of rigid material; a rechargeable electric battery arranged inside the tubular body; an atomizer associated with the tubular body and suitable to be powered by the electric battery; a tank (10) for an inhalable substance in aqueous solution, suitable to be placed in removable manner in contact with the atomizer; activation unit (5) for the atomizer, associated with the tubular body and suitable to be operated for activating the heating of the atomizer by unit of the electric battery.    USE - As electronic smoking substitutive device (claimed).    ADVANTAGE - The electronic smoking substitutive device does not require a frequent refilling of the tank for the liquid; has reduced weight and size; and has easy constructive and functional conception, a versatile use as well as relatively economic costs.    DETAILED DESCRIPTION - Electronic smoking substitutive device comprises a tubular body (2) of rigid material; a rechargeable electric battery arranged inside the tubular body; an atomizer associated with the tubular body and suitable to be powered by the electric battery; a tank (10) for an inhalable substance in aqueous solution, suitable to be placed in removable manner in contact with the atomizer; activation unit (5) for the atomizer, associated with the tubular body and suitable to be operated for activating the heating of the atomizer by unit of the electric battery. The electronic smoking substitutive device comprises a disposable mouthpiece of plastic material for inhaling the atomized inhalable substance, suitable to be axially associated with one end of the tubular body and shaping in its inside a chamber suitable to define the tank of the inhalable substance in aqueous solution, the chamber is pre-filled with a predetermined quantity of the inhalable substance, suitable to allow a predetermined number of inhalations, and closed in hermetic manner, at one end suitable to be placed close to the atomizer, through unit which can be opened on use. INDEPENDENT CLAIMS are included for the following:    (1) tank of inhalable solution for an electronic smoking substitutive device in which comprising a disposable container of plastic material suitable to be axially associated with one end of a tubular body of the device and shaping a mouthpiece for inhaling an inhalable substance vaporized by the device, the container comprising in its inside a chamber pre-filled with a predetermined quantity of the inhalable substance in aqueous solution, suitable to allow a predetermined number of inhalations, and closed in hermetic manner, at one end turned in use towards the inside of the device, through unit which can be open on use;    (2) use of a disposable tank pre-filled with a predetermined quantity of inhalable substance in aqueous solution combined with the electronic smoking substitutive device.    DESCRIPTION OF DRAWING(S) - The figure shows a perspective view of the electronic smoking substitutive device.    Tubular body (2)    Distal portion (2a)    Proximal portion (2b)    Activation unit (5)    Tank (10)