Authoritative research shows that extreme ultraviolet radiation with a wavelength of 222nm is not only harmless to human skin and eyes (Source: Japanese research proves that UVC radiation with a wavelength of 222nm is harmless to skin and eyes for the first time! -LED online). In the experiment of sterilizing bacteria on the skin, the sterilization effect of 222nm far ultraviolet light is equivalent. It is said that the experiment in Japan proves that 222nm UVC radiation will not cause skin cancer.
About ultraviolet: characteristics of 254nm and 222nm ultraviolet
The commonly used 254nm ultraviolet ray has the characteristics of pure physics, high sterilization efficiency, no secondary pollution, high power, etc. It is applied in a large area environment, and direct irradiation is harmful to human body and eyes. Therefore, it has been used in no one's environment.
More and more studies have shown that the wavelength of 222nm is equally effective for many pathogens, and this light does not pose a threat to human body. According to foreign media reports, Columbia University in the United States and Kobe University in Japan have respectively proved that UVC radiation with a wavelength of 222nm can be extinguished.