Does Your Pulse Oximeter Mean What It Says?

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Does Your Pulse Oximeter Mean What it Says? (Does Your Spouse?) FAR 91.211 requires supplemental oxygen after 30 minutes above 12,500 feet MSL and continuously above 14,000 feet and for pax above 15,000 feet MSL. A pulse oximeter can show…

What are the different oxygen types?

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Q: Is it true that medical and welder's oxygen differs from aviation oxygen? A: There are no different grades of oxygen being produced or contained in cylinders under DOT regulations. Contrary to common myth ~ medical oxygen contained…

How is the oxygen saturation level in the body affected when altitude is increased?

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At sea level, oxygen saturation in the blood is approximately 95%, which does not appreciably decrease up to pressure altitudes of 10,000 ft. at which point it decreases to about 90%. Above 10,000 ft, the saturation drops more rapidly and human…

In simple terms, what happens during rapid decompression?

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Air at sea level will expand to 5 times its volume at 40,000ft. Lung capacity is approximately 6 liters. Therefore, during rapid decompression, a continuous exhalation is experienced. Holding one's breath may result in bursting of the lungs.…

What is hypoxia and what can happen with prolonged hypoxia?

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Hypoxia is the physical condition induced by an inadequate concentration of oxygen in the blood and the organs. The insidious danger of hypoxia is the subject's unawareness of his deteriorating faculties which may actually be perceived as a…

What Every Pilot Should Know about Oxygen

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What Is Air? The air surrounding us is a mixture of gases consisting of 78% nitrogen and 21% oxygen. The remaining 1% is made up of argon, carbon dioxide, and traces of rare gases. What Is Oxygen? Under normal conditions, pure oxygen…