Cincinnati Children's says the most effective masks have layers and fit "snuggly." Cincinnati Children's says the most effective masks have layers and fit "snuggly." Cincinnati Children's says the ...
The TikTok video shows a blond child wearing a white face mask. To her left, an orange device takes readings. "1,376. 1,536. 1,769," a voice says in the clip. "2,125. So remember: Anything over 2,000 ...
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