>>80049
While Covid-19, the virus itself, is between 8/100ths and 14/100ths of a micrometer, what matters is the size of saliva projectiles which hang in the air with it for up to 3 hours. Saliva particles are anywhere between 6/100ths of a micrometer to 1000 micrometers. This means Covid-19 in saliva projections, source provided in the link above, will penetrate surgical masks when projected saliva is between 8/100ths to 20/100ths of a micrometer. The common variety cheap, disposable masks corporations demand their employees wear only filter 3 microns and up. Which is very stupid and pointless. Your natural mucociliary clearance is going to filter 2.5 microns and above on it's own. Those too are only meant for the purpose of being splash guards. It's the illusion they're going for to continue to profit among rising deaths. That's all. Which by the way, I'll go by John Hopkins for the lowest reported deaths to Covid-19. 96,802 dead North Americans and rising. [Deleted and reposted due to a typo]