Our oxygen sats are fine, say mask-wearing docs

US medics take to Twitter to dispel the myth that masks can cause hypoxia

Doctors have taken to social media to dispel the myth that wearing a mask is dangerous, turning to their oximeters as proof.

Many doctors, health authorities and governments around the world are recommending masks be worn in public to reduce the spread of COVID-19.

But there is widespread resistance to the idea, especially in the US, with one key concern cited as being that wearing a mask causes hypoxia.

In response doctors have posted pictures of themselves on Twitter, wearing masks and displaying healthy oxygen readings.

Paediatrician Dr Eric Ball, of Ladera Ranch in California, got the ball rolling last week with a post of himself in a mask and an oximeter reading of 98%, a tweet that has been shared 41,000 times.

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