ventilation

Italian study shows ventilation can cut school COVID cases by 82% – Reuters

Covid is airbourne – but preventing airbourne spread is perfectly doable – Here’s how to do it – Independent

Schools rejecting offers of air filters that limit Covid spread say parents – Guardian

iNews: Schools forced to keep classroom windows open when it is snowing outside because of lack of air purifiers

BBC: Covid in schools: ‘Fresh air will help stop the spread’