best answer > How high can you fly without pressurization 2024?- QuesHub | Better Than Quora
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  • Zoe Kim——Studied at the University of Cambridge, Lives in Cambridge, UK.

    The higher the maximum differential pressure, the closer to sea level the system can maintain the cabin. Federal Aviation Regulations say that without pressurization, pilots begin to need oxygen when they fly above 12,500 feet for more than 30 minutes, and passengers have to use it continuously above 15,000.read more >>
    +119962023-04-27 18:48:30

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