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?

Unwanted Indoor Air Quality Effects from Using Ultraviolet C Lamps for Disinfection

COVID-19 Decontamination: How to Harness UV-C Light to Disinfect Facilities - Facilities Management Insights

How to Keep the Coronavirus at Bay Indoors - The New York Times

CDC sets first target for indoor air ventilation to prevent spread of Covid-19

How hospital EVS helps lower the spread of airborne diseases

Analyzing different mechanical systems in response to COVID-19

Interventions for improving indoor and outdoor air quality in and around schools - ScienceDirect

Which air purification technologies can tackle COVID-19?

UV light: Corona care: UV LEDs can disinfect surfaces, reduce transmission - The Economic Times

Can we clean Covid from the air around us?, Feature

Germicidal UV lights could be producing indoor air pollutants, study finds, MIT News

UV Light Disinfection Effectiveness, Safety, and Lamp Types - LightSources