A new study suggests that face masks have a negligible negative effect on the levels of carbon dioxide and oxygen that a person breathes. All data and statistics are based on publicly available data ...

If you've ever traveled on an airplane, you know that masks can drop down to supply oxygen in the case of an emergency. Airline oxygen masks have about a 15-minute supply and typically fall when an ...

A viral video uses a demonstration with a child to claim that the cloth masks used to fight the spread of COVID-19 are unsafe for children. It’s a new version of a claim that’s been debunked. “People ...