More Covid-19 guidance needed for indoor spaces and ventilation, experts warn

Experts are warning that virus particles can linger in the air for several hours, but that recirculating air can help to minimise the risk of the virus spreading. File Picture: PA

Home and business owners need more public-health guidance on ventilation and air quality to help limit the spread of Covid-19, it has been warned.

Schools and other community facilities also need help in this area, John Wenger, professor of physical and environmental chemistry, University College Cork, and Orla Hegarty, assistant professor of architecture, University College Dublin, have warned.