I currently only wear N95s with valves and cover them with two nurses masks and wear goggles on flights. I was wearing respirators with exhaust valves, the ones with cartridges P100s, and the regular valved ones like the N100s and N95. But, for delta airlines they don't allow anything with a vent and make passengers either cover the valve with a mask or remove their valved mask and replace it. ThanksYou might want to go to the United Airlines forum. The mask is like the one you might use when painting with the cartridge/filters on the side of the headgear.
I have called United but can’t get information if these are on the approved list. Are half face respirators allowed on UA? Have you seen anyone wearing them when traveling?
