It's a fraction of a millimeter, actually, not several. It'll catch a percentage of stuff if you cough or sneeze, though not all, but it will not stop ordinary viral transpiration, especially given the volume that just bypasses the mask outright.
And your meme was about the shot. Keep in mind it has in fact been lethal for many thousands, it has injured tens if not hundreds of thousands, and those are just the ones docs bothered reporting.
We don't yet know a fraction of it, let along the full story.