"WARNING UNMASK YOUR KIDS! Any Carbon Dioxide concentrations above 2000ppm is dangerous!" The post was flagged as part of Facebook’s efforts to combat false news and misinformation on its News Feed.
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 ...
Experts say that the level of carbon dioxide in indoor air is an easy proxy for potential COVID-19 exposure. Outdoor air typically has less than 400 ppm of carbon dioxide. My measurements showed CO2 ...
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