Why are there still people with cloth masks out there?
Also, I've been looking to upgrade my masks. I'm using a kn95 right now (I think the same kind Obiden is using in the comm banner). People on this comm have talked well of the 3M Aura but I don't like the elastic straps that go over your head; I have long hair. Is there anything you guys use that's more hearty than a kn but you either have it around your ears or (for long term) tie a bow behind your head?
Depends on your use. Going to the store? You'll probably get quite a bit of reuse. Have a physically demanding job where you'll use them for 8+ hours? You'll probably need to replace.
General rule is toss em when they're dirty, damaged, or difficult to breathe through.