Although both ozone-free ultraviolet germicidal lamps and ozone-free ultraviolet germicidal lamps can be used for sterilization, their working principle and sterilization purpose are different. We know that ultraviolet lamps can sterilize because bacteria have a good absorption effect on ultraviolet rays in the UVC band. When bacteria absorb ultraviolet rays in this band, they will destroy the internal molecular structure of DNA and RNA and directly cause the death of bacteria. In terms of sterilization speed, UVC is within the range of microbial absorption peaks, which can kill viruses and bacteria by destroying the DNA structure of microorganisms within 1s.
Ultraviolet Uv Lamps in the UVC (280～200nm) band (specifically UVC-254) belong to ozone-free ultraviolet germicidal lamps. Ozone-free germicidal lamps are made of special glass (Some manufacturers also use high-boron glass, but the lamps made of high-boron glass are not as penetrating as those made of quartz glass). The ultraviolet rays emitted by them can effectively kill viruses, and they are ozone-free and harmless to the human body. They are used for air sterilization, water sterilization, homes, schools, and hospitals. The effect is good.
Ozone UV Disinfection Lamps specifically refer to 185nm ultraviolet lamps, and 185nm belongs to vacuum ultraviolet rays.The penetration ability of vacuum ultraviolet light is extremely weak. The lamp tube and casing need to use quartz with extremely high light transmittance. The ultraviolet light emitted by it and the air can produce ozone with strong oxidation, which can kill bacteria that cannot be irradiated by ultraviolet light. Bacteria can be effectively killed, but ozone is produced, and ozone is harmful to the human body.Therefore, 185nm ultraviolet lamps are generally used in the semiconductor industry to degrade TOC in water and are not used for sterilization.
Therefore, whether it is an ozone-free ultraviolet germicidal lamp or an ozone-free ultraviolet germicidal lamp, the ultraviolet germicidal lamp should ensure that no personnel enter the disinfection area when working. If you want to enter, you should also wear protective tools to enter, so as not to cause harm to people.
