This claim has been repeated and debated by professionals for the past three months. Air-quality monitors take 10 seconds on average to adjust to the air quality in an environment, so they are not ...

DENVER (CBS4) – Just about every day on social media you can find claims that masks limit oxygen. "You are putting yourself at immediate danger to life and health with irreversible adverse effects," ...

DUBLIN, Ireland -- A doctor based in Dublin, Ireland, has debunked the idea that a face mask lowers oxygen levels. In fact, he's shown that even wearing several has no effect. This video shows Maitiu ...

A doctor has disproved the myth that face masks or coverings lower oxygen levels in a viral video posted to Twitter. Maitiu O Tuathail, a doctor in Dublin, posted the video and said: "Getting asked ...

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 ...

Doctors and other healthcare workers are taking to Twitter to show that their blood oxygen levels are completely normal while wearing masks. As compulsory mask-wearing laws become more common across ...