I get it - many people have returned to pre-pandemic behavior (I'd hoped we'd at least keep masking when sick with anything) but this type of comment is certainly not going to win hearts and change opinions.
I get it - many people have returned to pre-pandemic behavior (I'd hoped we'd at least keep masking when sick with anything) but this type of comment is certainly not going to win hearts and change opinions.
After all, the entire length of a single COVID virus is only 70-90nm long.
What was the manufacturer-rated N95 stopping power of particle size again? 95% at 300nm! And it quickly goes south after that.
Also, because of ANY sufficiently virial load, the water droplets are even smaller.
Don't try and pull that nonsense of a human breathing action having cause a Brownian Motion to being able to catch even smaller particles because all cited papers mention unnatural atmospheric pressure (1800 mbar) to achieve this kind of filtering.
So, superiority complex, indeed.
Might as well wear a simple cloth mask. :-/
Second link also has zero “actionable” citation and scarily so, has a paltry 84 citations-by. Making this actionless, “citation-free” paper an even terrible source.
Sole reference: https://www.pnas.org/syndication/doi/10.1073/pnas.2110117118
It was actually a really cool story when this happened during the pandemic. The original inventor of the current n95 mask production technique came out of retirement to help out.
Too bad that the whitepaper's test sensors only works on particles greater than 300nm.
But it does rejuvenate the mask for another working day and alleviate N95 mask shortages.
But does not measure for virus-sized water-based particles.
Maybe Van der Wahl force.
https://granitegrok.com/wp-content/uploads/2022/04/1_Petty_N...