Now people use the ultraviolet sterilization principle to introduce the professional sterilization and disinfection technology of the hospital into the sterilization and disinfection field of daily life. This kind of sterilizer used in indoor, household, vehicle, refrigerator and industrial life uses high-frequency C-band ultraviolet to destroy the DNA of various microorganisms within 20 seconds to 1 minute, It can kill 99% of bacteria and viruses, including influenza, hepatitis virus, Escherichia coli, Staphylococcus aureus, Bacillus subtilis var. niger spores, and a variety of mold sources and allergens, providing people with a safe environment for clothing, food, shelter and transportation, especially suitable for rapid surface disinfection, deodorization, deodorization and fresh air of tableware, personal and public goods, toys and other items. Experts pointed out that UV can effectively kill swine flu, bird flu, hand foot mouth disease and other viruses.

The sterilization principle of the external sterilization and purification system is to use the radiation intensity of the ultraviolet lamp, that is, the radiation intensity emitted by the ultraviolet sterilization lamp is inversely proportional to the distance of the irradiated disinfectant. When the irradiation intensity is constant, the longer the irradiated disinfectant stays, the closer it is to the germicidal lamp, the better its germicidal effect, and vice versa.