How many don't wear shirts and shoes when they go into a store? To all that say they can't breathe well, the masks are very permeable. If you have trouble breathing, check with your doctor...or dentist.
Ask them about contaminated masks while you're checking....
But we get it. Mask wearers > non mask wearers
Contaminated masks? I guess that means that it did its job and kept someone from an infection. Also, put it on for 20 minutes to go into the store and then hang it up for a couple days and it's good as new.