a surgeon of 30 years Doc Graham, MD:; FACE MASKS; COVID 19 virus particle size averages 125 nanometers (0.125microns);
The N95 mask filters down to 0.3 microns, thus blocking few, if any, virions (virus particles).
Other surgical masks, home-made masks, and kerchiefs do the following:
1) allow free passage both ways (in and out) of COVID 19 virions.
2) become a warm, damp or moist reservoir of COVID 19 particles in asymptomatic "carriers" (estimated to be 85% of all people tested). Medical personnel working in operating rooms have years of training, intimidation, and humiliation to teach them to touch NOTHING but the 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 (definition: objects, such as clothing, towels, and utensils that possibly harbor a disease agent and are capable of transmitting it) transmission. Bottom line, wearing masks may give a false sense of security but provide greater danger both to the wearer and to the public.
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