Much in there that's wrong...
Mask functions are well understood... the science is well done... routinely applied.... in almost everything except Covid... which isn't about the science, but all and only about politics... and, otherwise, in medicine... where doctors think they know more and better than "science"... so they mostly just ignore it... Too many proofs of that in the current series of medical debacles to make it debatable...
Same history, of course, in the Ebola outbreak... where clearly telling the docs "your current containment, isolation and safety standards and protocols aren't good enough to prevent you getting infected and dying"... had them thumb noses indignantly... jet off to West Africa... get Ebola... and die.
Otherwise, if you want to see "the science" on masks... google up the standards that apply to the use of masks in occupational safety and health... including in biohazard environments... use " N95 N100 respirator particle" as key words. The NIOSH regs will list references... and they will each have SME's at the different agencies... the people validating the science behind the rules and testing the articles... You can e-mail them or call them up and chat... all of which I did back in Feb 2020... Parallels outside US are same.
"The truth is out there"... but it isn't looking for you.
On the biology side... also errors in assumptions re distribution... concentration... resistance...
Most of infection is not about "breathing in a virus"... but about concentrations of viri becoming high enough that they penetrate basic lines of defense... AND then overcome resistance...
If you do breathe "a virus" (prion, fungal spore, bacterium, mycoplasmid, etc.) that magically evaded an N100 mask... what will happen is... it will get caught in the mucus in your lungs... In the morning, you will get up, go to the bathroom, cough and hack... spit some phlem into the toilet... and that's all that ever happens.
But, if you are breathing a lot of smoke... and it reduces your ability to clear crud from your lungs... ?
If you don't breathe "a virus"... but a billion of them ?
It's still a game of numbers... and requires constantly upping your game in responses... tuning them appropriately... neither expecting perfection or ever surrendering in the effort to improve...
A mask that filters out allergens or irritants... so your body isn't already in an inflammatory storm before you get near a virus that by chance lands in your lungs ?
There is very little real science in this Covid thing far as I can determine.
That's just true. And, its AS true of their mask bullshit, too... which doesn't mean there isn't real science... it just means you can't trust them to know what it is... tell you what it is... or care...
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