Can portable air filters prevent respiratory infections and COVID-19 in care homes?

A major new randomised controlled trial will investigate the effectiveness of air filtration systems in preventing respiratory infections (such as coughs, colds and flu) and COVID-19 among care home residents in England. The AFRI-c (Air Filters to Prevent Respiratory Infections including COVID-19 in Care Homes) study, which received funding from the National Institute for Health Research (NIHR), is led by researchers at the University of Bristol.