What is UV-C?

UV-C radiation is not a new technology. In fact, according to the FDA, it has “effectively been used for decades to reduce the spread of bacteria.” This means there is proven efficacy using UV-C to inactivate pathogens in the air and on surfaces. This includes SARS-CoV-2 (COVID-19), monkeypox, and tuberculosis, just to name a few.

But what is UV-C, and how does it work to disinfect air and surfaces?

When it comes to UV-C lamps for disinfection, you may hear the term “germicidal lamps.” UV-C is ultraviolet (UV) light using wavelengths in the C range. It has shorter wavelengths and is the strongest energy form of UV. UV-C has the energy to disinfect and destroy pathogens of all types, including viruses, bacteria, spores, and other microorganisms, by disrupting and breaking down both DNA and RNA bonds. Furthermore, UV-C energy can break down certain chemicals and produce powerful oxidants for the elimination of odors. UV-C disinfection capabilities for specific pathogens are proven by years of scientific research, supported by independent studies, and further confirmed by meta studies.

The ultraviolet spectrum is divided into three major categories of strength, which are determined by the wavelengths measured in nanometers (nm). Shorter wavelengths have more energy, and thus, are stronger. The three categories of UV are: UV-A (315–400 nm), UV-B (280–315 nm), and UV-C (100–280 nm). UV-C can be further subdivided into germicidal UV (UVGI, 250–280 nm), far-UVC (200–230 nm), and vacuum-UV (VUV, 100–200 nm).

Those latter two wavelengths, UV-A and UV-B, are going to be much less effective, if effective at all, in eliminating pathogens. Plus, remember, UV-A is the wavelength that carries risk of skin aging and skin cancer.

When choosing a UV-C device, be sure to do your research! Even the FDA reminds consumers not all UV-C devices are created equal. The wavelengths emitted by the device can not only impact its ability to disinfect, but could also pose different safety risks for users. Airbotx has worked closely with scientists to create the best UV-C devices – available in mid-2023!