Disinfection appliance comprising: o a disinfection enclosure , bounded by a wall comprising an inlet opening via which an element that is to be disinfected can be introduced, and an outlet opening , opposite the inlet opening along a longitudinal axis (Δ) along which the wall extends longitudinally; o a nebulisation device designed to nebulise a disinfectant product into the form of an aerosol; o an injection device , comprising: • at least one aerosol injector , designed to inject into the disinfection enclosure the aerosol formed by the nebulisation device ; characterized in that the injection device further comprises: • at least one air injector , designed to inject air through at least one injection orifice in the wall , in an injection direction (D), and to generate in the disinfection chamber forced convection that also rotates about the longitudinal axis (Δ), the air injector being arranged in such a way that the injection direction (D) is, in projection in a plane perpendicular to the longitudinal axis (Δ), inclined with respect to an axis referred to as the position axis (PO), said position axis (PO) being perpendicular to the longitudinal axis (Δ) and passing through said injection orifice of said air injector . o a disinfection enclosure , bounded by a wall comprising an inlet opening via which an element that is to be disinfected can be introduced, and an outlet opening , opposite the inlet opening along a longitudinal axis (Δ) along which the wall extends longitudinally; o a nebulisation device designed to nebulise a disinfectant product into the form of an aerosol; o an injection device , comprising: • at least one aerosol injector , designed to inject into the disinfection enclosure the aerosol formed by the nebulisation device ; characterized in that the injection device further comprises: • at least one air injector , designed to inject air through at least one injection orifice in the wall , in an injection direction (D), and to generate in the disinfection chamber forced convection that also rotates about the longitudinal axis (Δ), the air injector being arranged in such a way that the injection direction (D) is, in projection in a plane perpendicular to the longitudinal axis (Δ), inclined with respect to an axis referred to as the position axis (PO), said position axis (PO) being perpendicular to the longitudinal axis (Δ) and passing through said injection orifice of said air injector . • at least one aerosol injector , designed to inject into the disinfection enclosure the aerosol formed by the nebulisation device ; • at least one air injector , designed to inject air through at least one injection orifice in the wall , in an injection direction (D), and to generate in the disinfection chamber forced convection that also rotates about the longitudinal axis (Δ), the air injector being arranged in such a way that the injection direction (D) is, in projection in a plane perpendicular to the longitudinal axis (Δ), inclined with respect to an axis referred to as the position axis (PO), said position axis (PO) being perpendicular to the longitudinal axis (Δ) and passing through said injection orifice of said air injector . <EOS>