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ESCMID: New method of purifying the air with ultraviolet light could protect world from new pandemic
A new air disinfection technology could prevent another pandemic, reports the European Society of Clinical Microbiology and Infectious Diseases (ESCMID).
The antibacterial and antiviral activity of UV light has been known since the 1940s. It is widely used in hospitals, but disinfection is possible only when there is no one in the room; ultraviolet radiation is dangerous for eyes and skin.
The aforesaid new approach to room disinfection is called FAR UV-C. Scientists have suggested using radiation with a wavelength of 222 nm; normally, light with a wavelength of 254 nm is used. This radiation does not harm the skin, eyes, or tissues.
Studies have shown that FAR UV-C can quickly and effectively inactivate influenza viruses, SARS-COV-2, and kill bacteria. In this case, pathogens cannot develop resistance to radiation, as is the case with vaccines and medical drugs.
Additional tests in a real room showed that FAR UV-C reduced the number of viral particles in the air by more than 99%. This means that this new technology is much more effective than conventional air filtration and ventilation systems.
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