Usage Tips:POWERFUL CLEANING POWER: The shoe deodorant can emit ultraviolet of 185 nanometers, which can convert the oxygen in the atmosphere into ozone. The high oxidizing performance of ozone quickly converts harmful substances and odors in the air into fresh air without causing harm to the human body. EFFECTIVE PREVENTION: If you are concerned about your foot health. It should be prevented in time to keep your shoes away from dampness and odors. The strong oxidizing properties of ozone emitted by sneaker cleaners quickly decompose the smell of shoes and convert them into fresh air. You deserve shoe fresheners sterilizer! ELIMINATE ODOR: Effectively dry shoes without leaving odor, provide delicate care for your shoes and prolong the life of your boots. The shoe deodorant has a long lifespan and a lamp life of 8000 hours, uniquely designed bulbs with screw sockets. Keep your shoes clean and fresh at all times. THREE MODES: The first mode is set as free time, you can turn it on or off at any time. The second mode is set to time 15 minutes. The third mode is timing 30 minutes. After the setting is complete, the ultraviolet deodorizer will automatically turn off after the set time. You can dry your shoes at a constant temperature to keep them dry.