Get a paintball mask/protector to wear. Sort of like SS mesh. But it covers your mouth and nose. Probably doesn’t impede your inhaling and exhaling. We bought some plastic shields from PROTEX.com that attach to our glasses. Only a couple places don’t allow them. Even if you don’t wear glasses, buy some readers and pop the lenses out. Best wishes.

It isn’t that I can’t wear one.
It’s that I can’t wear it very long.
Hell, last month it was 101 degrees when I was in Los Gatos.
By the time I had walked 1/2 way to my car the mask was soaking wet and breathing was impossible.
Took it off and person kindly asked where my mask was and I showed them it was sopping wet as was I
I got a three layer “tighty whitey” mask free from United on my last flight. I cut out two layers and coffee stained it. I then drank coffee through it in front of people. I’m thinking of adding mustard and ketchup stains.
When I absolutely, positively have to wear a mask, that is the one I don. Usually nobody notices I’m not covering my nose, but they’re getting wise.
Take a standard blue mask and peel two layers out. It's like wearing nothing.
I am 66 years old. I haven’t given up my rights yet, Don’t plan on it now. I don’t wear a mask at work. They know I’ll quit if they force me and I have one of the crappiest jobs in the office that no one wants to do. They won’t force me or they’ll have to find someone else. I told them they don’t pay for my healthcare.That shut them up.
BS. I had to wear one for a meeting for three hours yesterday. I’m home sick today with headaches as a result. The headaches began two hours into wearing it and haven’t gone away.