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Artificial UVC light is already used to disinfect surfaces in hospitals, for example using self-propelled robots.
The method has also been used, among other things, in hydraulic works since the 1950s to kill microbes in the water. Until now, the technology has been too dangerous to expose people, and the World Health Organization has warned against the use of UV light against the coronavirus.
But now scientific studies have shown that far UVC radiation that has short wavelengths, around 222 nanometers, cannot penetrate the top layer of the skin, while energy-rich UVC radiation inactivates the microscopic coronavirus particles by destroy the genetic material encapsulated in the virus particle. .
Studies have shown that far UVC inactivates dangerous MRSA bacteria resistant to antibiotics and influenza particles in the air.
LED lights kill the virus in 30 seconds
At the same time, a US research project has managed to develop LED diodes that emit disinfecting UVC light. Now, a Korean partner in the project has shown that LEDs can sterilize 99.9 percent of coronavirus particles in 30 seconds. UV light has previously been shown to work effectively against the virus that caused SARS.
