A medical aerosol device comprising a jet nebulizer within an aerosol chamber, a heating unit, and a liquid source. The jet nebulizer comprises a jet nozzle and an orifice in fluid communication with the liquid source, and functions by passing a jet of oxygen across the face of the orifice to draw liquid from the fluid source and through the orifice, where it is finely dispersed into an aerosol by the jet stream. The orifice includes an impinged portion curved to direct additional airflow across the orifice face, which is also canted away from the jet stream, which together results in a stronger and more consistent suction force on the liquid, and an aerosol in which at least 80% of the individual droplets are five microns or less. An improved heating control system and composition of a heating platen is also contemplated, as well as a method of use.
