To wear a mask or not to, that is the question that has been fiercely debated online since the start of the Covid-19 pandemic. One of the claims made by opponents of the protective face coverings is that masks can lead to suffocation from the carbon dioxide (CO2) we exhale. Proponents of this theory have posted videos online in which they use gas detectors to claim that the amount of CO2 we breathe when wearing a mask is extremely dangerous. However, there is no factual basis for that claim. We take a closer look.
from https://ift.tt/3cI6w9H
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