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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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.
The only oxygen equipment allowed on an airplane is the portable oxygen concentrator (POC). If you need oxygen in flight, you must take a portable oxygen concentrator with you, and , you must let your airline know ahead of time. They may require a doctor's letter to verify the need for the POC on the plane.
Choose a seat in the middle of the plane. As the air circulates across the rows and not up and down the plane, some experts believe the worst air is in the front or the back of the plane. Stay well hydrated by drinking lots of fluids (water or fruit juice) and avoiding caffeine and alcohol, which will dehydrate you.
How come? “The pressure, temperature and oxygen levels in the cabin fluctuate, and the humidity level is lower than it is at sea level,” says Matthew Goldman, MD. All of those things can mess with some of your body's normal functions.
Masks will automatically drop' And they will. Any cabin depressurization above a certain altitude (usually around 14,000 feet) will cause the panels of the chambers containing the masks to automatically open, and the masks to drop down. This can, of course, be done manually by the cockpit crew as well.
To save space and weight, most aircraft emergency oxygen systems don't have bottled oxygen for passenger masks. Instead, they have a cocktail of chemicals, usually sodium perchlorate and iron oxide, that produce oxygen when burned.
Anyone travelling in an aircraft will have a drop in the amount of oxygen getting into their blood, although they are unlikely to feel any different. When you have a chronic lung condition this can make your chest symptoms worse. You may feel more breathless, your chest may feel tight.
For most passengers, even those with respiratory disease, air travel is safe and comfortable. Some patients with COPD may be at risk but, with screening, these patients can be identified and most can travel safely with supplemental oxygen.
Try holding your breath and then breathing deeply, or better still, force yourself to breathe out for as long as you can and then take a long, deep breath. Seif and Farchione both recommended taking deep breaths, since this triggers the calming response and can help to prevent hyperventilation.