I’ve traveled a lot by air recently. I wore an N95 mask (3M Aura) on all flights and in airports. A couple of things: (1) N95 masks work really well! Even with the current high levels of COVID I remained healthy, despite twice sitting beside individuals who clearly had "summer colds”. (2) Nobody was weird about the mask, it was a non-issue. If you want to travel and not get sick then mask up. About 5% of travellers are masking, so you'll have company.