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Is the ultraviolet sterilizer sterilizing fast?

2023/03/18

Compared with traditional chlorine and ozone, ultraviolet sterilizers have a very fast sterilization speed. Ultraviolet sterilizer is a special form of material operation, which is a flow of unconnected particles. Each ultraviolet photon with a wavelength of 253.7nm has an energy of 4.9eV.

When ultraviolet rays irradiate microorganisms, energy transfer and accumulation will occur, and the accumulated results will cause the inactivation of microorganisms, thereby achieving the purpose of disinfection. When bacteria and viruses absorb a dose of more than 3600~65000uW/c㎡, it has strong destructive power to the deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) of bacteria and viruses, which can cause bacteria and viruses to lose their viability and fecundity. Eliminate bacteria and viruses to achieve the effect of disinfection and sterilization. On the one hand, ultraviolet rays can mutate nucleic acids, hinder their replication, block transcription, and protein synthesis. On the other hand, the generation of free radicals can cause photoionization, resulting in cell death.

The sterilizing principle of ultraviolet sterilizer is to use the radiation intensity of the ultraviolet lamp tube, that is, the radiation intensity emitted by the ultraviolet germicidal lamp, which is inversely proportional to the distance of the irradiated object to be sterilized. When the irradiation intensity is constant, the longer the irradiated disinfectant stays and the closer it is to the germicidal lamp, the better the bactericidal effect, and vice versa. With strong destructive power, it can make bacteria and viruses lose their viability and reproduction, and then eliminate bacteria and viruses to achieve the effect of disinfection and sterilization.

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