Nowdays，the professional definition technology which once applied in the hospital，have been introduced into our daily life.this kinds of sterilizer which used in living rooms ，refrigerator and industrial sterilizer，all taken advantage of the High frequency ultraviolet c - band at 20 seconds to 1 minute for a variety of microbial DNA damage effects,above 99% bacterias and viruse could be killed by UV-c，which include ；Influenza, hepatitis virus, Escherichia coli, Staphylococcus aureus, black variants and multiple source production by Bacillus, Bacillus subtilis allergen，it can provide mankinds a safe community environment，Especially suitable for tableware，Personal and public goods,toys. Experts pointed out that；Ultraviolet rays can effectively kill swine flu, avian influenza and hand, foot and mouth disease virus.

   Ultraviolet radiation is a kind of invisible light waves, optical spectrum UV - ray - side lateral, so call UV. Which is One of electromagnetic wave ultraviolet radiation from the Sun, usually according to wavelength ultraviolet light is divided into four classes are as follows

　Ultraviolet Is a special form of material and a kind of separated particles. Each wavelength of 253. 7nm ultraviolet with 4. 9eV energy，When a microorganism is shined by ultraviolet, energy transfer and accumulation, accumulation resulted in the inactivation of microbes, to achieve the purpose of disinfection. When the bacteria, viruses, absorbing more than 3600~65000uWc square meters dose, To oxygen to the bacteria, virus ribonucleic ribonucleic RNA and DNA has a strong destructive power.it could lead Bacteria, viruses, loss of vitality and fertility in turn destroy bacteria, viruses, achieve the effectiveness of disinfection and sterilization. Ultraviolet rays can make DNA mutation, impeding its replication, blockade of transcription and protein synthesis on the other, producing free radicals can cause Photoionization, thus leading to cell death.

Principles of sterilization ultraviolet sterilizer is take advantage

of UV lamp radiation intensity, is issued by the UV germicidal lamp radiation intensity，and it’s inversely to the distance ，When the radiation intensity is stable，the residence time of disinfection longer germicidal lamp closer and its sterilization effect, the better,opposite is bad.