Ultraviolet LED lights kill coronavirus quickly, efficiently and cheaply — but don’t go stringing purple lights all over your home.

Israeli researchers discover that coronavirus can be quickly and easily killed using UV LED lights.


As the world continues to race toward a vaccine for Covid-19, new Israeli research shows that the humble light bulb could become a major player in the fight against the pandemic. Researchers have discovered that coronavirus can be killed quickly, efficiently and cheaply using ultraviolet light-emitting diodes, or UV LED lights. In a study recently published in the Journal of Photochemistry and Photobiology B: Biology researchers found the optimal wavelength for killing the coronavirus is 267 nanometers. They also discovered that a wavelength of 286 nanometers is almost as efficient, requiring less than half a minute to destroy more than 99.9 percent of the coronaviruses – good news considering that 286 nm LED bulbs are much cheaper and more readily available, and could be installed in air conditioning and water systems.

Prof. Hadas Mamane from Tel Aviv University led the study and believes that the technology will soon be available for use. The disinfection systems based on LED bulbs, however, can be installed in the ventilation system and air conditioner, for example, and sterilize the air sucked in and then emitted into the room. Ultraviolet radiation is a common method for killing viruses and bacteria. Ultraviolet disinfecting bulbs can be found in home water purifiers.Earlier this year, scientists determined that applying ultraviolet light on the inside of ventilation systems in indoor spaces can quickly and efficiently deactivate both airborne and surface-deposited Covid-19.

For more details please contact tejinder.singh@israeltrade.gov.il

(Courtesy: https://www.israel21c.org/you-can-kill-covid-with-a-flick-of-a-switch-study-shows/)