“Believe these demonstrations, because they’re true. Many professions require the regular use of masks, and the people ... older can safely wear a cloth face covering for extended periods ...

When the COVID-19 pandemic took off in 2020, so too did questions over the effectiveness of wearing a face mask to prevent the ... airborne particles when used properly. But even if a mask has ...

Face masks are the ubiquitous symbol of a pandemic that has sickened 35 million people and killed more than 1 million. In hospitals and other health-care facilities, the use of medical-grade masks ...