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How much oxygen does a human need per average breath of air?
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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we need about 20 percent a day 4% 4% Although Earth's atmosphere at sea level contains 21% oxygen by volume the human body only uses about 5% out of the available 21% oxygen …per breath. Oxygen is used to facilitate the conversion of glucose into energy (ADP - adenosine triphosphate) by acting as a proton trasnfer agent in the electron transfer chain after the Kerbs Cycle. It is because we only require about 5% out of the available 21% that we can save other peoples' lives via artificial respiration during CPR; ie: we have 16% that we breath out so the other person has more than they need.
A grown human breathes about 7.2 kilograms of oxygen in a given a day. This may vary based on the activities that they are engaged in.
An average person would need 8 liters of air per minute daily. Depending on the activity that an individual was doing at the time, the amount of oxygen needed could increa…se.
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…r (388 cubic feet) in a day. The air that is inhaled is about 20-percent oxygen, and the air that is exhaled is about 15-percent oxygen, so about 5-percent of the volume of air is consumed in each breath and converted to carbon dioxide. Therefore, a human being uses about 550 liters of pure oxygen (19 cubic feet) per day. A person who is exercising obviously uses a lot more oxygen than that. You could determine how much air is moving through your lungs by exhaling into a plastic bag of known volume at each breath and seeing how long it takes to fill the bag.
400 to 600 cc (about a pint). (Maximum breath is about 4000 to 5000 cc.
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 …4 seconds per inhale/exhale cycle. The amount of air involved is about 500mL and is essentially composed of nitrogen, oxygen, carbon dioxide, and water (vapor). So if you use 21,000 breaths a day, times 500 mL, I would say about 10,500 L per day as an estimate. Activity will affect this estimate.
The total air volume of lungs is from about 4.0 liters to 6.0 liters depending on the size, age and gender of a person. The volume of air moved during a normal breath is o…nly 0.5 liters.
Oxygen---------- 4-5 % Carbon dioxide---------- 20% Nitrogen--------- 75%
Yes the same amount will leave you as you take in on average but when you breathe out there will be more CO2 and less oxygen as your body uses Oxygen for it's metabolic functi…oning and releases CO2 in it's place. So yes same amount out as in but in a different form.
if oxegyen was water then about 5 gallons of water you breath in each breath
About 16% of the air you expel is oxygen.
We do not use 100% of the Oxygen we inhale. we use only around 20% of it. Birds are more efficient and can absorb around 40% of their intake.
288 cubic feet of "air" or 19 cubic feet of pure oxygen .