re: A mask is like using a chain link

If you are pitching behind an L screen, and a ball could still barely get through the holes of the screen, would it still stop some of the balls.....yes.

What if you had 2 of those L screens in front of you?

“One 2013 studyTrusted Source looked at how masks could help people with the seasonal flu limit spreading it when they exhale small droplets containing the virus. Overall, researchers found masks led to a more than threefold reduction in how much virus people sprayed into the air.”