1 Sterilization: After 30 minutes of starting work, the killing rate of Staphylococcus aureus is 100%, that of natural bacteria is 93.86%, that of Escherichia coli is 99.99%, and that of Staphylococcus aureus is 100%. 99.99%, the killing rate of Salmonella typhimurium is 99.99%, purifying the air and blocking airborne diseases. Table 1 introduces the effect experiment of chlorine dioxide on some bacteria. It can be seen that chlorine dioxide has the advantages of broad spectrum, fast speed and so on. 2 Decomposes formaldehyde, effectively decomposes harmful gases such as formaldehyde, benzene, phenol, etc. in the air. Decompose the aldehyde group in the formaldehyde molecule and completely oxidize it to carbon dioxide and water without secondary pollution. 3 Removal of peculiar smell: the appropriate amount of chlorine dioxide can not only effectively protect people's health, protect various indoor items from growing mildew in the wet rainy season, but also effectively remove toilet odor, garbage odor, room odor, coal Various common peculiar smells such as oily smoke and cigarette smell, and the small amount of atomic oxygen it releases can also play a role in freshening the air. 4 Anti-corrosion, fresh-keeping, anti-corrosion, anti-corrosion, anti-corrosion and fresh-keeping: Chlorine dioxide can prevent methionine from decomposing into ethylene, and can destroy the formed ethylene, thereby delaying decay. At the same time, it can control spoilage bacteria, but it does not react with fatty acids and does not affect the quality of food. Maintenance and cleaning requirements: (1), unplug the power plug before cleaning and maintenance. Use warm water or neutral detergent when cleaning, and prohibit gasoline, benzene and other chemical reagents. Do not let the electrical system get damp when cleaning. (2). The cleaning of the air inlet window of the exterior and pre-filter is the responsibility of the user department. The surface of the air disinfector and the air inlet and outlet windows are scrubbed daily to keep the naked eye without visible dust. (3). Air inlet pre-filter: clean once every 6 months, and once every 3 months if the pollution is serious. Rinse with clean water after unloading, and load after drying. Take good notes. (4) The internal electric field components are generally maintained once every two years, and once a year when the pollution is serious.