What are the air components during exhalation?

Answer 1

What we breathe in is far from pure oxygen, but roughly by volume 78 per cent nitrogen, 21 per cent oxygen, 0.965 per cent argon and 0.04 per cent carbon dioxide (plus some helium, water and other gases). The permanent gases in air we exhale are roughly 78 per cent nitrogen, 15 to 18 per cent oxygen (we retain only a small amount), 4 to 5 per cent carbon dioxide and 0.96 per cent argon, the CO2 being of course used by plants during photosynthesis.

We only use use up a little oxygen on what we actually breathe, and what we exhale, CO2 increases. And the other gases we breathe just goes in and out of our system.

Answer 2

The air we inhale is roughly composed of (by volume):

• 78% nitrogen
• 21% oxygen
• 0.96% argon
• 0.04% carbon dioxide, helium ,water, and other gases

The permanent gases in gas we exhale are roughly 4% to 5% more carbon dioxide and 4% to 5% less oxygen than was inhaled. This expired air typically composed of:

• 78% nitrogen
• 13.6% - 16% oxygen
• 4% - 5.3% carbon dioxide
• 1% argon and other gases

Answer 3

During exhalation, the main components in the air are carbon dioxide, nitrogen, and traces of other gases like oxygen, water vapor, and inert gases. Carbon dioxide is the primary gas exhaled by the body as a waste product of cellular respiration.

Answer 4

co2 o2 and water vapours