In addition, just like you hear about inaccurate Covid testing that's produced false negatives/positives, 3M is going after companies through the legal channels as a lot of counterfeit "n95" masks are showing up and being distributed. So those counterfeit ones are even less effective at filtering.The only masks that are close to 100% are the N100 masks; which are hard to breathe with and we do not use them in the medical field. We usually use regular surgical masks, but now we have N95 masks which filter up to 95% of airborne particles.
Yes, I will admit, the COVID-19 virus is real. Is it a real threat to the general public, not really if a person or someone they live with isn't Immunocompromised or has a respiratory issue. The Coronavirus is 0.01 microns in size. The N100 filters .02 or larger. The N95 mask filters .05 or larger. Surgical masks filter roughly 75% of all airborne particles. Cloth face masks filter 25% of all airborne particles.
So, there's your breakdown. Will the vaccine work? That depends. Some people will respond to the weakened virus, so will not. There's always a risk that the immune system will not be able to do anything and the person will become a carrier or infected. It's being rushed so fast through the system, checks and balances are not 100% (they never are).
I find it interesting that China usually exports most of the PPE to the US but 2 months before the Coronvirus went public, China re-imported most of the PPE back to their home country. And now they are producing counterfeits. Just sayin...