Ozone can kill more than 90% of the natural bacteria in the air, which is in line with the national standard for the death rate of natural bacteria in the air ≥90%. At the same time, ozone is transformed into oxygen in the disinfection process, and the remaining small amount of ozone molecules that do not participate in the disinfection will automatically decompose into oxygen, with no residue and no pollution. In a relatively closed environment, ozone disinfection diffuses evenly and contains well, overcoming the inherent characteristics of ultraviolet radiation and various sterilization methods. It can achieve the purpose of comprehensive, rapid and efficient sterilization.