Far-UVC light is emerging as a promising tool for disinfection. Unlike traditional germicidal UVC light (254 nm), far-UVC light (207-222 nm) can inactivate bacteria and viruses without posing a significant risk to human health. This is because far-UVC light has a shorter wavelength, which is absorbed by the outer layer of human skin and eyes, preventing it from penetrating and causing damage.
Research has demonstrated the efficacy of far-UVC light in killing airborne pathogens, including influenza viruses and coronaviruses, making it a potential solution for reducing the spread of infectious diseases in public spaces. Its safety profile allows for continuous use in occupied environments such as hospitals, schools, airports, and other high-traffic areas, providing a continuous and effective means of disinfection.
Far-UVC light works by breaking the molecular bonds in the DNA and RNA of microorganisms, effectively rendering them inactive. Its ability to safely and continuously disinfect surfaces and air highlights its potential for enhancing public health measures, especially in the context of pandemic preparedness.