Scientists think of UV LED ULTRAVIOLET light to defeat the Coronavirus in indoor environments.
Some researchers hope that decades-old technology may have found its moment and be implemented in shops, restaurants and schools.
As society tries to rise from the Coronavirus pandemic, some scientists hope that decades-old technology will eliminate pathogens from the air in stores, restaurants and classrooms, potentially playing a key role in containing the further spread of the infection. "In the past we have struggled to use this highly effective and very safe technology for air infections" said Dr. Edward A. Nardell, Professor of Global Medicine for Health and Medicine at Harvard Medical School.
"We have completed our studies. We know it works." It has been understood that disinfected UV light and a UV part of its spectrum is particularly effective to eliminate the pathogens present in the air. Not as President Trump said, in April, when he incomprehensibly stated the importance of radiating "inside" Covid-19 patients with ultraviolet light…
Portable ultraviolet units are already used to sterilize the surfaces of hospital rooms and subways, but can only be used when such spaces are not occupied. In the approach described by scientists like Dr. Nardell, devices mounted on walls or ceilings, similar to the lights used today, send ultraviolet light well above the head of people.
Sometimes ceiling fans are installed to draw air upwards, so that bacteria, viruses and floating fungi are eliminated more quickly. Ultraviolet light manipulates genetic material in pathogens - DNA in bacteria and fungi, RNA in viruses - preventing them from reproducing.
"He practically killed him" said William P. Bahnfleth, professor of architectural engineering at Pennsylvania State University. (….)
Source: New York Times