- Can you breathe at 35000 feet?
- Is there oxygen at 35000 feet?
- At what height do you lose oxygen?
- Is living at high altitude healthy?
- Can planes fly at 50000 feet?
- Can you get altitude sickness at 5000 feet?
- Can you breathe at 40000 feet?
- At what height does oxygen start to thin?
- Do airplanes circulate fresh air?
- At what altitude is it hard to breathe?
- How high can you fly without oxygen?
- Do Pilots breathe pure oxygen?
- Is 5000 feet hard to breathe?
- Why can’t planes fly over the Pacific?
- Why do jets fly at 35000 feet?
- Can a human survive at 37000 feet?
- Can you breathe at 20000 feet?
- Can a human survive at 35000 feet?
- What is the lowest flight level?
- Do planes fly over Everest?
- Do you age faster at higher altitudes?
Can you breathe at 35000 feet?