[PeterPrinciple]

That’s all I wanted to say, ..... (paper) masks do not affect O2 intake

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go do some work with one on...................

[knarf]

QUOTE

"I check my O2 frequently and I average between 93 and 96, but remember, that is quality, not quantity.

I put a paper mask on, even covering my nose, and my O2 level never changed, at rest, for about 10 minutes.

I did some moderately strenuous work for a few minutes (all I could do" before becoming too winded), and my O2 never changed.

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