Here is some interesting information. Might cause you to rethink the type of mask you wear. Could also help you to know which people to keep a further distance from based on the type of mask they're wearing.
I use a double quilters cotton face mask because that is what the CDC recommended for home made masks since the cotton is a close weave and provides better filtration than other fabrics. The problem is its hot and sometimes harder to breath through than other fabrics. Luckily I don't have to have it on long. But it would be nice if there was an effective mask that was easy to breath through as well - an impossible request I know, but it would be nice.
9 Types of Masks & Their Effectiveness | Cloth, Surgical & N95 Masks