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?

How to to Clean Our Indoor Air Properly Against COVID-19

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

Can air purifiers help stop coronavirus spread indoors? - Vox

Applied Microbiology, Free Full-Text

Upper-Room Ultraviolet Germicidal Irradiation (UVGI)

Frontiers Exploring the Applicability of Robot-Assisted UV Disinfection in Radiology

Global Air Quality and COVID-19 Pandemic: Do We Breathe Cleaner Air? - Aerosol and Air Quality Research

Analyzing different mechanical systems in response to COVID-19

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

The White House Supports Far UV 222nm

Clean Comfort UV Light Comfort Control Specialsts