Pressurized oxygen is O2 that is under more than the normal air pressure of 24 pounds per square inch.
burros
Pilot because it is thin at high altitude in non pressurized cabin.
Oxygen facials help reduce the signs of aging. One would receive a steam of pressurized oxygen directly to the skin. Included with the oxygen is vitamins and minerals. It begins with a cleansing before the oxygen is given.
An external oxygen delivery system would consist of an oxygen source (such as a pressurized gas chamber), a pressure relieving system and a delivery system such as a breathing tube.
Hyperbaric Oxygen Therapy is still not a widely used treatment although there are claims that it has some great benefits. The process involves breathing pure oxygen in a pressurized room and it often used to treat decompression that is experienced by scuba divers. The oxygen stimulates stem cells and growth factors which promotes healing in general.
burros
Airplane cabins are pressurized because humans cannot breath at a very high elevation.Aircraft are pressurized to allow them to fly higher. Without pressurization, the amount of oxygen in the air would not be sufficient for humans to breathe.
Pilot because it is thin at high altitude in non pressurized cabin.
Propane and LNG, liquid natural gas are two of the most common. Hydrogen and oxygen used by NASA is also stored as pressurized liquid.
Oxygen facials help reduce the signs of aging. One would receive a steam of pressurized oxygen directly to the skin. Included with the oxygen is vitamins and minerals. It begins with a cleansing before the oxygen is given.
During flight the cabin is pressurized with oxygen to match what it would be like on the ground.
The percentage of Oxygen in the air is the same in airplane as it is outside the airplane. The only difference is the pressure levels. If the pressure drops too much then the total amount of Oxygen will be insufficient for you to breath and you will pass out. The airplane only carries oxygen for use in emergency and is dispensed in the oxygen masks of the crew and passengers. Maybe your Question is asking what the total volume of oxygen is available in a pressurized airplane. I don't know that.
Medical oxygen is supplied at 99.5% pure O2. Do not confuse this with medical air, which is just pressurized air.
An external oxygen delivery system would consist of an oxygen source (such as a pressurized gas chamber), a pressure relieving system and a delivery system such as a breathing tube.
At 35,000 feet, a human would suffer severe oxygen starvation without a pressurized cabin. Also known as "death". A pressurized cabin in a commercial - or military - airliner is essential at high altitude.
Modern airliners fly at altitudes in excess of 30,000 feet. At such heights the air is very thin and humans cannot get enough oxygen. Prolonged exposure to such conditions can be fatal. A pressurized cabin, though, has air pressure and oxygen levels that are habitable and does not but people at any risk.
11