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Coast to coast UPS observations
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<blockquote data-quote="zubenelgenubi" data-source="post: 4495424" data-attributes="member: 63706"><p>You don't get it from wearing a mask. <em>Maybe</em> a respirator, and only one without a valve, since they are supposed to be sealed around the face. But hypoxia or hypoxemia would probably take a respirator wearer down before their CO2 levels rose high enough to be a concern.</p><p></p><p>Masks, on the other hand, which are what the graphic references, are loose fitting, so exhaled air escapes easily. Dirty masks can also lead to trouble breathing, because it is harder to breathe in, and subsequently hypoxia or hypoxemia.</p></blockquote><p></p>
[QUOTE="zubenelgenubi, post: 4495424, member: 63706"] You don't get it from wearing a mask. [I]Maybe[/I] a respirator, and only one without a valve, since they are supposed to be sealed around the face. But hypoxia or hypoxemia would probably take a respirator wearer down before their CO2 levels rose high enough to be a concern. Masks, on the other hand, which are what the graphic references, are loose fitting, so exhaled air escapes easily. Dirty masks can also lead to trouble breathing, because it is harder to breathe in, and subsequently hypoxia or hypoxemia. [/QUOTE]
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