TED Talks Daily Can light stop the coronavirus? | David Brenner
Jul 24, 2020
David Brenner, a radiation scientist specializing in the use of far-UVC light, discusses its groundbreaking potential to combat the coronavirus. He reveals how this innovative light can effectively kill viruses while remaining safe for human exposure. Brenner explores practical applications of far-UVC in indoor spaces like hospitals and public transit, highlighting its transformative effect on public health. With the capability to continuously sterilize air and surfaces, he presents a hopeful vision for a future less burdened by airborne pathogens.
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Far-UVC Safety
- Far-UVC light kills viruses and bacteria but is also safe for human exposure.
- This is because it has a short wavelength that cannot penetrate human cells.
How Far-UVC Works
- Far-UVC light's short wavelength prevents penetration into living human cells in skin and eyes.
- However, it can penetrate and kill smaller viruses and bacteria.
Far-UVC Usage
- Continuous or frequent use of far-UVC light is needed to effectively control virus levels.
- Short bursts of use are insufficient for sustained disinfection.