This further damages the genetic material in the nucleus of the cell, or nucleic acids in the virus, which damages the DNA of the microorganism 6,7.This makes the virus unable to replicate itself and infect new host cells, effectively killing the virus’ ability to spread. UVC inactivation of viruses works by destroying the outer protein coating. Many viruses contain lipid or protein coats that can be inactivated by chemical alteration, heat processing, solvents, etc. Specifically, in viruses, viral inactivation works by altering the surface chemistry of a virus, making it unable to infect new cells. It does this by damaging their genomic material (their DNA or RNA). UVC is electromagnetic radiation that works to inactivate germs and microorganisms, such as bacteria, viruses, yeast, molds, or protozoa. The range of 200–270 nm is known as the “germicidal UVC spectrum” 4, because it is strongly absorbed by the nucleic acids and disrupting the DNA of a microorganism and, therefore, is the most UVC radiation has been employed to disinfect things such as:įor this reason, UVC lamps are often called "germicidal" lamps, meaning that it kills germs. UVC is the radiation from the highest energy portion of the UV spectrum (100-280 nm) 1.īasically, it comes naturally from the sun, filtered by the ozone layer but, it can also be created by artificial sources used in industry, commerce and recreation 2. We committed to spending the time and effort educating consumers on the fast-evolving world related to viruses and disinfection. There's a huge need for COVID-19 education, but there's a gap in credible sources. However, most consumers aren’t aware devices may not work or be safe to use when they’re disinfected to prevent the spread of COVID-19. This is probably because it seems lamps would be a little easier to work with when you have parts that can’t be doused with liquids, like bleach. ultraviolet-C (UVC) lamps) to disinfect surfaces versus using bleach or disinfectants to clean everything. Can UVC lamps inactivate the SARS-CoV-2 coronavirus?ĭuring the Coronavirus pandemic, there have been many questions about UVC sanitizing devices, (a.k.a.
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