How and When can a mask be NOT be effective?

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asked Jan 19, 2022 130k views

1 Answer

Robin Schmidt · Answer 1 · 2022-01-25T12:49:54+0000

wearing it wrong if it is ripped torn made the wrong way not cdc approved wearing a disposable mask more than once and other people just not wearing it right

How and When can a mask be NOT be effective?

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