Science, Space and Technology News 2024
Far-UVC light has proven highly effective in real-world settings at inactivating over 99% of airborne viruses in occupied spaces, as demonstrated by a Columbia University study, offering a practical and continuous disinfection solution that could surpass conventional ventilation systems in preventing airborne disease transmission. This technology, safe for human exposure, represents a significant advancement over traditional germicidal UVC methods, which require empty spaces to operate.
“You can decontaminate a room in the morning before people arrive, but it can quickly become contaminated again because people in the room are shedding viruses and other airborne pathogens,” Brenner says. “The goal is to be able to continuously decontaminate a room while people are in it.” At Columbia, a room where laboratory mouse cages are cleaned provided an ideal test setting. Most mice carry a form of norovirus that doesn’t make the animals—or humans—sick, but high concentrations of the virus become airborne when the cages are cleaned.
Brenner’s team is also performing laboratory studies to directly quantify the effect of far-UVC light on airborne disease transmission.
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