20.8 percent
The percentage of oxygen in inhaled air by humans is approximately 21%. This oxygen is then absorbed by the lungs and transported by the blood to the cells where it is used for energy production in the body.
Around 21% of the air you breathe is oxygen.
The percentage of oxygen in the atmosphere is 20.75%. The atmosphere has many other elements that we breathe in besides oxygen. Oxygen needs to be present for life on earth.
Approximately 21% of the air we breathe is made up of oxygen.
78% Nitrogen 20.5% Oxygen .5% Argon 1% Others for small calculations we take percentage of oxygen in air as 21%
The percentage of oxygen in inhaled air by humans is approximately 21%. This oxygen is then absorbed by the lungs and transported by the blood to the cells where it is used for energy production in the body.
Around 16% of the air you breathe out is oxygen. This percentage decreases from the 21% of oxygen in the air you inhale due to the exchange of gases that occurs during respiration.
About 21% of inspired air is oxygen.
Room air is about 21% oxygen.
oxygen percentage in air is 20%
Air contains about 19-20% oxygen
Around 21% of the air you breathe is oxygen.
21%oxygen
As altitude increases, the percentage of oxygen in the air decreases. This is because the air becomes thinner at higher altitudes, leading to lower oxygen concentrations.
The percentage of oxygen in the atmosphere is 20.75%. The atmosphere has many other elements that we breathe in besides oxygen. Oxygen needs to be present for life on earth.
About 21%
About 21%.