Doctor Wears 6 Face Masks to Prove They Do Not Lower Oxygen Levels + Important Message from John Cena [Videos]

Irish doctor Maitiu O Tuathail was sick and tired of hearing people claiming that masks can lower your oxygen level, so he decided to do something about it. He hooked himself up to an oxygen monitoring machine and then wore 6 masks one on top of the others. Watch.

Gets some of our amazingly geeky masks right here.

And here’s an important message from John Cena:

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