The MiST in-car air quality service treats the problem of mold, mildew and bacteria in a vehicles ventilation system to restore interior air quality. MiST uses a standalone portable 12V ultrasonic unit that atomizes a specially formulated solution into nano-droplets. Features: Ultrasonic technology, Unattended operation and automatic shut-off upon completion, Connects to vehicles 12V, Fast 15 minute service time, Works on all vehicles.