Viruses don’t have “wings” so actual virus size is mostly irrelevant to the mask argument. Viruses “ride” on saliva and “snot” (mucus excretions)...masks of any type reduce “ballistic” droplet (larger) transmission and the different but related “aerosol” transmission (very small droplets)...yes, N95, N100, etc. masks the best, but nothing short of a “positive pressure hazmat suit” is 100%.
..masks of any type reduce “ballistic” droplet
It seems that not enough to make any difference.