Oxygen
No. Many planets have atmospheres, but most are made of noxious gases, have to great an amount of pressure, or are to cold or hot to be habitable for humans.
Hydrogen and Helium
'loose atmospheres': are the build-up and presence of obnoxious gases within the drainage system.
amonia, hydrogen,
Their gravity is too weak to hold on to atmospheric gases.
All the planets in our Solar System have atmospheres, except for Mercury, which only has minute traces of gases.
All animals breathe out the same gases. It's a fact of Respiration.
So they make air, and carbon dixodie so plants, animals, and humans can breath.
A tailpipe directs the exhaust gases from an operating combustion device away from areas where animals or humans are present.
78% nitrogen 20% oxygen 1% of other gases
Nitrogen at 78%. Oxygen at 21%. and other gases at 1%
The atmosphere exchanges gases by means of convection, radiation, and conduction. This is how energy is transferred between the Earth and the atmosphere.