Can UV light clean indoor air to reduce the spread of Covid?

Some wavelengths of light in a range called far-UVC kill microbes in experiments and appear to be harmless to people. Could they be used to make indoor spaces safer against the coronavirus?

Could An Old Tool, UV Light, Help Kill Airborne Coronavirus? : Shots - Health News : NPR

Could An Old Tool, UV Light, Help Kill Airborne Coronavirus? : Shots - Health News : NPR

Frontiers The Role of Indoor Plants in air Purification and Human Health in the Context of COVID-19 Pandemic: A Proposal for a Novel Line of Inquiry

Far-UVC light: A new tool to control the spread of airborne-mediated microbial diseases

Improving indoor air quality to prevent COVID-19

Far-UVC (222 nm) efficiently inactivates an airborne pathogen in a room-sized chamber

Specific UV light wavelength could offer low-cost, safe way to curb COVID-19 spread, CU Boulder Today

Do UV lights kill COVID-19 in air conditioning systems?

Could UV Light Reduce the Spread of Covid-19 in Indoor Spaces?, Innovation

Upper-Room Ultraviolet Germicidal Irradiation (UVGI)

UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication

UV Light Might Keep the World Safe From the Coronavirus—and Whatever Comes Next - IEEE Spectrum

COVID-19: How to make indoor spaces safer, Coronavirus pandemic

Assessing the Filtration Effectiveness of a Portable Ultraviolet Air Cleaner on Airborne SARS-CoV-2 Laden Droplets in a Patient Room: A Numerical Study - Aerosol and Air Quality Research