Originally Posted by
skkm
I checked in the cruise yesterday: at FL340 the 777's cabin altitude was 5200 feet.
Thank you. Can I fly with you? (I'm skkm, fly me!

). At 6000' I begin to experience respiratory distress, at 8000' I need oxygen. Which means paperwork, and hassles at security. I will actively seek out aircraft that are pressurised to a lower level. I don't mind carrying the oxygen, I do mind the hassles taking it on board. I don't think I'm alone. Nottingham Hospital takes out several lungs a day.
Still, I bought a car with the compensation for the surgeon having screwed up the operation to remove half a lung, which left the other half inoperative. You can buy a lot of oxygen with that.