Ultraviolet radiation C (UVC) is defined as 100 - 280 nm wavelengths UV. UVC from solar UV cannot reach the surface of the earth, because this range of UV is absorbed by the ozone layer. Conventional germicidal UVC light (254nm wavelength) can be used to disinfect unoccupied spaces such as empty hospital rooms or empty subway cars, but direct exposure to these conventional UV lamps is not possible in occupied public spaces, as this could be a health hazard.
As an alternative, far-UVC light (207 - 222 nm) has been reported that it efficiently kills pathogens such as Coronavirus potentially without harm to exposed human tissues. This is because, due to its strong absorbance in biological materials, far-UVC light cannot penetrate even the outer (non-living) layers of human skin or eye; however, because bacteria and viruses are of micrometre or smaller dimensions, far-UVC can penetrate and inactivate them.
Continuous low dose-rate far-UVC light in indoor public locations is a promising, safe and inexpensive tool to reduce the spread of airborne-mediated microbial diseases. Based on the latest research results, continuous far-UVC exposure in occupied public locations at the current regulatory exposure limit (~3 MJ/cm²/hour) would result in 90% viral inactivation in 8 minutes, 95% in 11 minutes, 99% in 16 minutes and 99.9% inactivation in 25 minutes.
As a professional developer and manufacturer of UV lights for decades, our factory Guangdong Excimer Optoelectronic Technology Co., Ltd is specializing in design, research, manufacture and retail of UV lights and components. We have the most advanced technology and experience of germicidal lamps R&D and manufacture. Every year we supply more than one million UV lights to the global market.
Now we are proud to announce our latest far-UVC 222nm excimer lamp First UVC through our research and tests for years. First UVC excimer lamps are been qualified of far-UVC 222nm wavelength and can be safely used in occupied spaces and efficiently inactivate airborne Coronavirus and influenza virus.
Our far-UVC 222 lamps could be safely used or integrated into overhead lamps for occupied spaces like hospitals, buses, planes, trains, train stations, schools, restaurants, offices, theatres, gyms, and anywhere that people gather indoors. Far-UVC 222 lamps could be used in combination with other measures, like wearing face masks and washing hands, to limit the transmission of Coronavirus and other influenza viruses. As a bonus, far-UVC lamp could also prevent the spread of airborne microbial diseases such as tuberculosis.
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Efficiently and safely inactivating airborne Coronavirus and influenza virus in occupied public locations
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