A study recently published in Scientific Reports, conducted by researchers at Columbia University, has suggested that types of ultraviolet light could kill airborne coronavirus particles.
Lead researcher Dr. David Brenner told Reuters that ceiling fixtures emitting a safe form of ultraviolet light called far-UVC could work to protect areas from the coronavirus.
“A very low exposure to far-UVC light killed well over 99.9% of the exposed virus,” Brenner said.
In the study, the researchers tested far-UVC lights on coronavirus particles, then later collected the samples and analyzed them to see how many were still active. However, it is important to note that it was not the COVID-19 coronavirus that was tested in the study. There are a variety of different corornaviruses, which includes the common cold, SARS, COVID, and others, but Brenner says that they are killed by far-UVC light.
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“In our subsequent ongoing studies we have found that the coronavirus that causes COVID-19 is killed in just the same way by far-UVC light,” Brenner said.
Brenner suggested that overhead far-UVC lights could be installed in public places, where they could continuously kill microbes, including the COVID-19 virus. He also said that companies that manufacture these lights are already ramping up production.
“We don’t see far-UVC light as an alternative to masks and social distancing. We see it as a new extra weapon that we can use in the battle against COVID-19,” Brenner said.
Earlier this year, Truth Theory reported that some hospitals were already using germ-zapping machines that use UV light to kill germs. There are at least 450 of these machines being used in different hospitals throughout the United States. The robot uses pulses of high-intensity, high-energy ultraviolet (UV-C) as a disinfectant, which the company says kills 99.9 percent of dangerous viruses and bacteria in less than 5 minutes. The light can also split open bacterial cell walls to kill dangerous pathogens commonly found in hospitals.
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