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How much oxygen does a human need per average breath of air?

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In an average gasp of air, only 15-20% is oxygen. When you exhale you release around 10%. In short, 10% would be the ideal minimum.
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How much oxygen does an average person need per day?

The average adult at rest inhales and exhales something like 7 or 8 liters (about one-fourth of a cubic foot) of air per minute. That totals something like 11,000 liters of ai

Why can't a person who needs extra oxygen just breathe air?

  Air contains only about 60% oxygen. When someone is having difficulty breathing, there is ususally a heart or lung condition. As the heart pumps, it allows for and excha

How much air does a human breath?

well they breathe tons of times during the day the average would br about 1,000,000 times a day! The average person at rest will breathe about 15 +/- times per minute meaning

Why do you need oxygen to breath?

Yes you do because its without oxygen you will die You do not NEED oxygen to breathe. You NEED to breathe oxygen. It's different. Let me explain. Breathing is the inha

How much do you breathe in and breathe out for oxygen?

the air is a mixture mainly of Nitrogen, around 80%, and a mixture of other gases including Oxygen and Carbon Dioxide (CO2). Only the oxygen is required for human breathing pu