From a surgeon.
MASKS! Folks, let a surgeon of 30 years (a.k.a. me) teach you about MASKS. COVID 19 virus particle size averages 125 nanometers (0.125microns); the range is 0.06 microns to .14 microns; one needs an electron microscope to see a COVID 19 virus particle. The hoarded N 95 mask filters down to 0.3 microns. So, N95 masks block few, if any, virions (virus particles). This is a simple fact, so you just cannot argue against it. Other surgical masks, home-made masks and kerchiefs do the following: 1) the allow free passage both ways (in and out) of COVID 19 virions. 2) they become a warm, damp or moist reservoir of COVID 19 particles in asymptomatic "carriers" (estimated to be 85% of all people tested). For surgeons, years of training, intimidation, and humiliation teach us to touch NOTHING but our surgical field. Lay people constantly touch, re-arrange, and manipulate their "masks", wonderfully inoculating thousands of virus particles onto their bare or (even worse, gloved) hands. So, these absurd masks ENCOURAGE the fomite transmission ("infected" articles-to-hand-to face transmission of the virus). So, go ahead and allow idiots to delude and mislead you to the false sense of security--and danger--of masks!
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