No Air Up There

Hypoxia Awareness

Photo of a mountain peak with snow.

The Rules and the Regs


  • Increased breathing rate
  • Headaches
  • Lightheadedness
  • Dizziness, tingling, or warm sensations
  • Sweating
  • Poor coordination, impaired judgment, tunnel vision, and euphoria.

PROTE-able Training

Photo of participants in the FAA’s PROTE system.

O₂ Equipment

Photo of oxygen equipment.
Photo of oxygen equipment.
  • A storage system (containers)
  • A delivery system
  • Mask or nasal cannula

Storage Systems

The results of a servicing error where high pressure oxygen was used to fill a low pressure system.

Delivery Systems

Masks and Nasal Cannulas

Know the equipment you have on board, know when to use it, and most importantly, know its limitations. It’s your key to a safe and enjoyable flight.

Photo of an oxygen system.
An example of a nasal cannula system.

Check It


This article was originally published in the March/April 2023 issue of FAA Safety Briefing magazine.



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FAA Safety Briefing

Official FAA safety policy voice for general aviation. Part of the national FAA Safety Team (FAASTeam).