The cold cathode ultraviolet lamp can emit ultraviolet rays with a wavelength of 253.7nm. It is excited by a lower mercury vapor pressure (<10-2Pa) to emit UV light waves. There are two main emission lines: one is 253.7nm, This wavelength enables deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and nucleoproteins in bacteria to absorb UV light. After the bacteria absorb ultraviolet rays, the DNA strands are broken, resulting in the rupture of the cross-linking of nucleic acids and proteins, killing the biological activity of nucleic acids, and causing the death of bacteria. ; The other is 185nm, the ultraviolet light of this wavelength is used for high vacuum sterilization, vacuum ultraviolet light can ionize oxygen in the air to produce ozone to achieve the purpose of purifying the air, and the dispersibility of ozone can just make up for the fact that ultraviolet light only travels in a straight line, and disinfection has no effect. The disadvantage of dead corners.
These two are invisible ultraviolet rays. The unique waveband intelligent conversion structure enables the energy of UV photons to penetrate the cell membrane of microorganisms, destroying the DNA structure of various germs, bacteria, parasites and other pathogenic bodies, and destroying their nucleic acids. Molecular bonds make it inactive and die, so as to achieve the effect of disinfection and sterilization. It can effectively kill bacteria within a range of 15-60 square meters, including more than 20 common bacteria and viruses such as Escherichia coli, Mycobacterium tuberculosis, influenza virus, and hepatitis B virus.
