People have to wear masks recently due to the large spread of the new coronavirus. The virus does not exist in the air alone, and must be spread by the suspended particles in the air, which are usually droplets in the human nasal cavity and oral cavity, and most of this droplet particle...
No. Children can safely wear masks all day. There’s a myth that wearing masks for long hours could mean breathing in too much carbon dioxide (CO2), which could lead to hypercapnia -- CO2 poisoning. But that’s not true. Evidence shows that CO2 molecules are small enough to pass through...
Homemade face masks and coveringsmay not be able to block out every particle, and arenot guaranteed to keep you from acquiring the coronavirus, but they can help in some circumstances (more below). The need to reserveN95 masksfor doctors and nurses to use as protection has meant that ordin...
No. Children can safely wear masks all day. There’s a myth that wearing masks for long hours could mean breathing in too much carbon dioxide (CO2), which could lead to hypercapnia -- CO2 poisoning. But that’s not true. Evidence shows that CO2 molecules are small enough to pass through...
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