What would you like to do?
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.
Was this answer useful?
Thanks for the feedback!
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.
the average person breaths in about 7 to 8 litres of air every minute when relaxed hope this answers your question
oxygen takes up 20 % of the air we breathe
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…nge of co2 and o2. When there is a dysfunction, the person cannot pull out all of the o2 from the air and need 100% o2 in order to have levels that are able to sustain life.
About 21% of air is oxygen.
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.
400 to 600 cc (about a pint). (Maximum breath is about 4000 to 5000 cc.
a regular human being average eats about 8 pounds a day
because they don't work as hard as humans do
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…ling and exhaling air. When we inhale, we inhale oxygen and other chemicals. If we INHALE oxygen that means it wasn't present before yet, we BREATHED. Please phrase question. Oxygen is needed because it contributes to the respiration process. Respiration is the process by which energy from food is converted to energy. The chemicals involved in this process: Glucose + Oxygen = Carbon Dioxide + Water + Energy Hence, why you need 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…rposes, so you take in about 5 times the quantity of air as you need in order to get your oxygen supply. When the oxygen is used for 'internal combustion by the body's muscles, the by product is carbon dioxide which becomes part of the air you breath out. Plants don't actually breath but absorb CO2 in the process of photosynthesis, which requires light to operate, at which point the plant will release oxygen, but during the dark hours, it uses oxygen and puts out CO2.
In Animal Life
Oysters need oxygen to live...they don't breathe per se, their gills remove the oxygen that is normally dissolved in water and use it for aerobic activity.
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.
we take in oxygen and give carbon dioxide