air filtration

A short, sharp ventilation routine — even in freezing weather — is being promoted by public-health experts as one of the most effective, low-cost ways to reduce airborne infection risk inside homes and workplaces, but the precise headline doing the rounds on social media (a Manchester Evening...

Households across the UK have been urged to “open windows for 10 minutes a day” as public health bodies renew simple ventilation advice to reduce the concentration of airborne viruses, lower indoor carbon dioxide and clear stale pollutants — advice that’s useful in ordinary seasons but that also...