The ScentLok OZ20B Ozone Generator emits a powerful stream of ozone molecules to seek and destroy virtually all types of odors and bacteria. When ozone comes in contact with smelly contaminants, their chemical structure is changed to a compound that is no longer recognizable as an offensive odor. The odor is eventually destroyed through a process called oxidation. The ozone then reverts back to oxygen. The ScentLok revolutionary CycleClean technology moderates output by alternating between active and resting phases for maximum efficiency. The ScentLok OZ20B Ozone Generator is versatile and portable to provide odor-free fresh air in vehicles or campers. Lasts up to eight hours on a rechargeable battery and also includes a 12-volt DC power supply and a USB port to charge your devices. Warning: Ozone products are only intended for use in unoccupied spaces. Type: Scent-Control Devices.