Utilize the principle of electrolytic air to realize the functions of disinfection, sterilization and deodorization. It can meet daily needs in kitchens, bedrooms, toilets, hospitals, etc., and disinfect household air. If the device is placed at the outlet of the air conditioner, the indoor circulating air can be used to disinfect and purify the air. The oxygen and negative ions after decomposition can keep the indoor air fresh. In addition, it can also be used in public spaces such as hotels, restaurants, shopping malls, theaters, etc.