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Let There Be Germicidal Light: This $500 Fixture Could Stop the Next Pandemic, from Complex Systems
Far-UVC 222 light fixtures, costing roughly $500, can neutralize airborne pathogens in shared spaces, potentially preventing future respiratory pandemics.
What: Researchers have demonstrated that Far-UVC light (at a 222-nanometer wavelength) can inactivate airborne viruses within a room-sized environment without harming human skin or eyes. Unlike traditional UVC, which is dangerous to humans, this specific frequency appears safe for continuous occupancy.
Why it matters: If adopted in public infrastructure, this technology could treat shared indoor air like treated water, providing a passive health barrier that requires no behavior change from the public.
Decoder
- Far-UVC 222: A specific band of ultraviolet light that is highly effective at killing microbes but is absorbed by the outer layer of dead human skin cells, making it safe for use in occupied rooms.
Original article
Far-UVC 222 has been shown to efficiently inactivate airborne pathogens in a room-sized chamber. While the technology is unlikely to prevent the average common cold, mostly spread through close, extended contact, it could be helpful in blunting a future respiratory pandemic where more of the spread happens at a range through shared air. It is functionally equivalent to an extremely strong air purifier. The biggest bottleneck to the technology's adoption currently is awareness.
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