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Do oxygen levels drop on a plane?

Traveling by airplane exposes people to decreased air pressure and lower than normal oxygen levels. For most people, these changes are not noticeable.



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The air on a plane contains less oxygen than the air we normally breathe in. This leads to lower levels of oxygen in the blood. If you do not have a lung condition, the drop in oxygen is not enough that you would feel the difference.

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Even at 3,000 feet, there is a 10% drop in barometric pressure, and therefore a 10% drop in the number of oxygen molecules for each breath you take. Passenger airplanes are usually pressurized to between about 6,000 to 8,000 feet when the plane is cruising at 36,000 feet.

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Check the airline's oxygen policy Others will allow you to bring your own Federal Aviation Administration (FAA) approved portable oxygen concentrator (POC) onto the flight, but will often specify the type of device you can use.

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Treatment of Hypoxia If hypoxia is suspected in yourself or others on board an aircraft, follow these simple steps: Administer supplemental oxygen (don your oxygen mask) Check your equipment for proper operation. Ensure the regulator is turned on.

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When and How Are Oxygen Masks Released? Oxygen masks release whenever there's a drop in cabin pressure. Sometimes the flight crew might initiate the release. However, it usually triggers automatically when the cabin altitude gets to 14,000 feet.

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Answer: No. The cabin is pressurized between 6,000 and 8,000 feet on long flights. Adding supplemental oxygen is not necessary, because the percentage of oxygen is the same as being on the ground at those altitudes.

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A simple pulse oximeter reading while you are at high altitude, at rest and during activity, can determine if oxygen is needed at altitude. Alternatively, some pulmonary function labs can perform an altitude simulation test to determine your oxygen saturation at altitude.

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Answer: No. The cabin is pressurized between 6,000 and 8,000 feet on long flights. Adding supplemental oxygen is not necessary, because the percentage of oxygen is the same as being on the ground at those altitudes.

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