There are other moons in the atmosphere that also contain atmospheres. There are some that come with oxygen and carbon dioxide but the atmosphere is just too thin. Different moons come with various atmospheres but the only moon that comes with a significant atmosphere is Titan.
This is the only moon that comes with an atmosphere that is similar to that of other planet’s. Due to its atmosphere, it is also beginning to show some signs of life that scientists believe may have been available on Earth when it was just starting out. Most moons have extremely thin atmospheres and will have no chance of sustaining life. The Earth’s moon does not have any atmosphere.