This patented ozone device scientifically eliminates odor in all types of footwear. It completely destroys odor using ozone molecules. This product provides long term, dependable odor elimination. These exclusive emitters can be periodically be removed, cleaned, or replaced for ongoing peak performance. Works quickly (1 to 6 hours, depending on odor type and saturation). Energy efficient (uses only 4 watts of power), silent, and safe. Meets OSHA and EPA ozone standards.