Product Description Just plug the Car Ionizer into your cars cigarette lighter socket and sit back and enjoy the ride as it works silently and effectively to clean, refresh and purify the air in your car. It traps irritants and allergens on collection blades and then releases purified air back. Operates on 12 volt outlet of cars cigarette lighter/accessory outlet. No filters to replace or chemical to use. Swivels to allow perfect positioning. Energy efficient.