More than an air freshener, this small but mighty generator safely removes scents in your vehicle. Simply plug into a 12-volt power outlet, press the power button, and go. ZeroTrace™ Vehicle instantly gets to work to not just mask odors in your car, but eliminate them. Safe to use around people and pets to fight back against any unsavory smell, even after a long day of hunting. How PureION™ Works This ZeroTrace™ device creates a constant flow of charged particles known as plasma ions. These electrically charged positive and negative ions naturally cling to airborne particles as air cycles through the unit. Through a bonding process, the ions render odor molecules and scent contaminants inert. All without the by-product of potentially harmful ozone.