Why is wearing an N95 so effective, and wearing a blue surgical mask not very effective? Physics!
There’s a significant difference between a mask and a respirator. A surgical mask is just fancy fabric that catches, well, spit. An N95 has an electrostatic charge that grabs particles and holds them. Think about rubbing a balloon on your head and watching your hair stick to it. That’s the science working to keep viruses out of your lungs when you breathe, instead of letting them waltz right in.
https://whn.global/six-years-and-six-winters-without-getting-sick/
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