Can UV light kill the COVID-19?

The sudden new crown epidemiced has made ultraviolet light a popular topic. Searching through Google Trends with ” UV ” as the keyword,it can be found that since 2020,the global search popularity of UV has been high .

1 . The effect of ultraviolet rays of the new coronavirus(COVID-19 )has been verified. Previous studies have shown that UV light can be used to kill viruses, bacteria. mold spores, algae and other microorganisms,and the latest research has also verified its effect on the COVID-19.

On April 2nd , news revealed that the research team of Seoul Viosys and Korea University used the Violeds compound semiconductor technology in mass production to test and successfully killed 99.9% of the new type in 30 seconds.

Irradiation time and virus sterilization rate (The distance between Violeds light source and virus is 3cm) (Source: Seoul Viosys)

In addition, the latest research has also arrived at the dose required to inactivate the COVID-19. Signify conducted a joint study with the National Laboratory for Emerging Infectious Diseases (NEIDL ) at Boston University. The research team used a radiation dose of 5mJ/cm² to radiate from 6 seconds and successfully inactivated 99% of the COVID-19. Based on this data, if a radiation dose of 22mJ/cm² is used for 25 seconds, 99.9999% of the COVID-19 can be inactivated.

2 . Progress in research and reproduction of ultraviolet rays that are harmless to skin and eyes.Since the wavelength bands used by common ultraviolet disinfection equipment are harmful to human skin and eyes, improper use can easily cause safety hazards. be there ultraviolet light that can kill microorganisms and harmless to the human body? The following related research progress has certain reference value. The report shows that the research team at Columbia University’s Radiology Research Center is conducting experiments on far UVC light.David Brenner, the head of the research center, said that far UVC with a wavelength of 222nm cannot penetrate the surface of the skin or eyes, but it can still kill the virus.

In addition, the latest research has also arrived at the dose required to inactivate the COVID-19. Signify conducted a joint study with the National Laboratory for Emerging Infectious Diseases (NEIDL ) at Boston University. The research team used a radiation dose of 5mJ/cm² to radiate from 6 seconds and successfully inactivated 99% of the COVID-19. Based on this data, if a radiation dose of 22mJ/cm² is used for 25 seconds,99.9999% of the COVID-19 can be inactivated.

2 . Progress in research and reproduction of ultraviolet rays that are harmless to skin and eyes.

Since the wavelength bands used by common ultraviolet disinfection equipment are harmful to human skin and eyes, improper use can easily cause safety hazards. be there ultraviolet light that can kill microorganisms and harmless to the human body? The following related research progress has certain reference value. The report shows that the research team at Columbia University’s Radiology Research Center is conducting experiments on far UVC light . David Brenner, the head of the research center, said that far UVC with a wavelength of 222nm cannot penetrate the surface of the skin or eyes, but it can still kill the virus.

Up to now, the epidemic situation in some countries and regions around the world is still getting worse. The use of 222nm UVC lamp to kill viruses will become a normal and must-have item in life. According to the latest ” 2020 Deep Ultraviolet LED Application Market and Brand Strategy ” report, From 2019 to 2024, the global UV LED market has a compound annual growth rate of 27% , and UVC LED products have a compound annual growth rate of 60%.

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