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We're told to wear masks. How do we do it safely and properly?

Post-COVID Recovery & COVID-19 | Last Active: Apr 29, 2020 | Replies (23)
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@contentandwell

@merpreb Very good article but I don't see where it says you are not breathing in CO2, even when breathing correctly -- in through the nose, out through the mouth. If you are breathing in exhaled air, isn't that primarily CO2? I guess I'm just confused. 🤷🏻‍♂️
Thanks for any helpful elaboration.
JK

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