The difference between UVC UV and ozone killing
A sudden epidemic, disrupting the rhythm of people's lives, but also let more people pay attention to personal health and hygiene, UVC ultraviolet and ozone germicidal disinfection lamps have also become the "new Netflix". Today, we will explore the difference between UVC germicidal and ozone sterilization.
UVC ultraviolet disinfection principle
Ultraviolet light is common, it is the light of sunlight with wavelengths from 10 to 400 nanometers (nm), and can be classified into UVA, UVB, and UVC according to different wavelengths. among them, UVC (wavelengths from 200 to 280 nm) can penetrate the cell membrane and nucleus of living organisms, destroy DNA, and play the effect of killing various germs, such as bacterial propagules, budding cells, viruses, fungi, etc.
The principle of UV killing viruses and bacteria is to use the natural spectrum of ultraviolet light wave (UVC) irradiation to destroy the DNA or RNA molecular structure in the cells of microbial organisms, causing growth cell death and/or regenerative cell death, thus achieving the effect of germ removal. The genetic material of the new coronavirus is RNA, and UVC can act on the RNA to break it, so that it cannot synthesize the required protein normally, thus killing the virus.
Ozone disinfection principle
Due to its strong oxidizing properties, ozone presents outstanding sterilization, disinfection and pesticide degradation, and is a highly effective broad-spectrum bactericide. Ozone can also kill hepatitis virus, cold virus, etc. Ozone diffuses in the air quickly and evenly, disinfection without dead ends. Its disadvantages: sterilization time is long, generally should reach 50 ~ 60min; In addition, if the surface of the items to be disinfected have water, will make the ozone disinfection effect is weakened.
Which is better: ozone disinfection or UV disinfection?
UV disinfection and ozone disinfection actually have their own characteristics, ozone disinfection has a strong oxidizing effect, it is the same as UV does not produce excess byproducts, by oxidizing the internal enzymes of bacteria, destroy their metabolism eventually lead to death. Ozone itself is a gas that can diffuse the entire space, and there is almost no dead space. However, ozone disinfection and ultraviolet disinfection, like sterilization penetration are not strong. If you want to achieve the best results, you need about 30-60 minutes, otherwise it will not be thorough enough, a short period of time will allow a variety of fungi, pathogens resurgence. After the disinfection machine is closed, it should also be airtight for 30 minutes, so that the effect will reach the most ideal. The principle of germicidal ultraviolet light is through ultraviolet radiation of bacteria, viruses and other microorganisms to destroy the structure of its DNA (deoxyribonucleic acid) in the body, so that its immediate death or loss of activity, while the ozone can only kill bacteria, viruses can not.