The invention comprises an insufflated air inlet (2a), an outlet (3a) for said insufflated air provided at the lower end of an air-conveying tube (3) designed to penetrate the mouth and throat of the victim, at least a first one-way valve (4) interposed between said air inlet (2a) and air outlet (3a) to allow the flow of air from said inlet (2a) to said outlet (3a) and to prevent the flow of a fluid exhaled by the victim in the opposite direction, the body of said valve (4) including an aperture (4a) for the exit of the fluid exhaled by the victim, and characterized in that the upper end of said tube (3) for conveying insufflated air comprises a portion (3b) of a tube (3) that is configured in order to receive, within, the body of said valve (4), the wall of said tube (3) including at least one exterior hole (6) that is in communication with the aperture (4a) of the body of the valve (4) in order to allow evacuation to the exterior of the fluid exhaled by the victim.
