Face shields and masks with exhalation valves were found to be less effective at protecting others from the coronavirus than normal face coverings, according to a study on Tuesday. New research, ...

The demonstration does not show what it claims to show. Studies have repeatedly found that cloth masks used to fight the spread of COVID-19 do not unsafely reduce oxygen flow. A viral video uses a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." With new variants come symptoms like a sore throat, fever, cough, and fatigue, so it's important to mask ...

Masks work best when everyone in the room has one on, but you’ll still benefit from masking up even when those around you aren’t. Credit...Aileen Son for The New York Times Supported by By Tara Parker ...

While any face covering is better than nothing, clear plastic shields and masks with exhale valves allow large plumes of particles to escape and may also expose the wearer to more germs. By Tara ...