It’s in this context that the World Economic Forum’s (WEF) enthusiastic promotion of the Chinese ‘smart face mask’ needs to be seen. It apparently reminds users when to wash it and checks if they’re wearing it properly. If too much carbon dioxide builds up inside, a phone alert reminds the wearer to catch a few breaths of fresh air. If the user forgets to put it on, the same phone app sends them a reminder to mask up.
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So, the thing is going to be buzzing all the time, I assume? Or how exactly are they defining what a safe level of CO2 is for someone to breathe? Someone already confirmed that the air inside a mask goes below safe levels of oxygen and CO2 concentration as soon as a person puts it on.