Thin air

0 viewsOct 6, 2026

What thin air does to your body: less oxygen higher up, and hypoxia, which creeps up unnoticed. You learn when pilots need extra oxygen, why an airliner's cabin is pressurised, and why a cold or a dive keeps you on the ground.

What you learn

  • Explain why thin air brings in less oxygen
  • Recognise the early signs of hypoxia
  • Give the European oxygen rule for private flights
  • Explain what a pressurised cabin does
  • Say how long to wait after scuba diving

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