
Originally Posted by
FoxtArt
I am solidly against any mandate, but this is not scientific, and makes incorrect assumptions.
First off, we can agree regular masks don't work.
Any mask that doesn't seal against the face isn't going to be effective because the least resistance is not through the mask, it is around it. So all the disposable and cloth stuff is garbage, except for intercepting some of your sneeze goo.
Things that seal against the face, e.g. respirators can be quite effective, on the other hand.
While an individual virus is smaller than even a N95's filtration, that wholly ignores the science of infection. Any respiratory virus does not just walk into Mordor by itself. Many cannot even survive independently. The primary vector is always on micro-droplets of water which carry thousands of individual virus particles. Microdroplets are exhaled by everyone, all the time, bigger droplets when we sneeze, etc. In any event, even a fairly crappy respirator will intercept these many-micron sized droplets of water, and the viruses they contain will largely be deposited on the mask.
The other factor two is viral load, something that is not taught in schools for whatever reason. Viruses are in fact, horribly ineffective, most of them utterly fail. The way to think of them are like seeds from a tree. A typical tree might make 10,000 seeds before it has a viable offspring. Many viruses also need to, on average, have 10,000 enter you before you actually have one that successfully "plants". So it's not a case of "oh, one virus got through a mask, you're sick" it's simply "stop the water droplet with 50,000 on it and if you breath in 25 it's not a problem".
The most successful virus I know of is norovirus. It only needs 20. When it's circulating in your community you might as well accept the fact you'll be shitting your pants soon.
SARS-COV2 is nowhere near as successful.
If you have any respiratory virus and need/want to protect others - wear a good respirator. It really works. Likewise if you're immunocompromised or don't want to get something, wear one when risk is high.
My advice predates all this political bullshit on both sides by many years.
I had full-blown-influenza many years back and had a critically vulnerable, low weight newborn (failure to thrive). Everyone else had it too.
Influenza may have very well been fatal to this baby. Knowing full well how the transmission operates, I donned up good respirators and a N95 every time I had to care for them, threw away gloves each time and having good PPE policy, and tried to keep the airspace separated. Let me say, it's a bitch taking care of a newborn when you have a 103/104 fever and body aches for a week. TLDR: A FTT newborn never caught influenza despite their provider being in constant contact, which would've been very dangerous in the circumstance... And they are doing great today. But go ahead and keep telling me a N95 is like a chain link fence, folks.