NHS doctor fed up of hoax Covid-19 information has proved that wearing a face mask won't affect breathing. Dr Joshua Wolrich, 30, from London, took to Twitter to debunk the "lies" and called people to "stop being selfish".
He said in the post : "Masks categorically do not reduce oxygen saturation. This is a lie made up as an excuse by those who believe the pandemic is a hoax and that wearing a mask somehow encroaches on their rights.
This is not an issue of freedom."In the video which has been viewed nearly 570,000 times, Dr Wolrich shows a pulse oximeter in camera and says: "This, on my finger, records the oxygen saturation of my blood and my heart rate."This top number is the oxygen saturation.
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