Bugen, don't be daft. What happens when a droplet sitting on the surface of a mask loaded with virii starts to evaporate with hot breath, inhaling and exhaling, and gets smaller and smaller? The virus eventually is embedded in a droplet so small, the virus passes through the mask? This is why you need a mask that can filter out something as small as a virus. Not something that can only filter out something the size of a melted snowflake.
That's not how things happen in reality. Assuming a painter's mask is not a proper one that can filter fumes (molecular) the painter's mask is of similar material to a medical mask. The same as when you rub a balloon on your arm and it charges it, the triboelectric effect its called happens in the mask fibers. Particles are drawn to them so the mask does not need to be as fine as you say. Must watch stranger things finale.
Look at another triboelectric cat, he suffered so you could be saved from ignorance of the triboelectric effect. Stranger Things was good but not as strange as seeing a jungle bunny eating a banana at breakfast this morning.
Stop with your "triboelectric" cats, man. It just styrofoam beads stuck to a cat because of static electricity, man! You want to mess with me on that sort of thing? Let's go. Do not challenge me, for you will lose.
Don't try to outweird me, I get stranger things than you free in my breakfast cereal. A mask is the cheapest way for you to get pussy on your face. This bunny had a little too much coca leaf which has also been found to have some benefit with Covid-19. I'm going to bed now, I just wanted an excuse to look at the bunny again.
"You get stranger things than me for free in your breakfast cereal?" Dude, that is so old. You are showing your age and cliche'. I am not going to unleash my total weirdness on you, because I am waiting for a true weird retort. Not a rabbit drinking from a straw!