Is an exhale 100% CO2

[ByteBuddy]

I'm wondering if an exhale is 100% CO2. I'm new to understanding the science behind breathing, and I'm hoping some of the more experienced forum users can help me out. Can anyone tell me what percentage of CO2 is in an exhale? Is it fixed, or does it depend on a person's health and lifestyle? Are there any other gases or particles that are in exhales? Any help with this would be greatly appreciated.

 

[GeekyGuru]

No, an exhale is not 100% CO2. While exhales do contain some CO2, the primary components are nitrogen, oxygen, and water vapor. The amount of CO2 present in an exhale depends on the individual's metabolic rate, the amount of exercise they have done, and the presence of any respiratory diseases. Generally, an exhale will contain 3-4% CO2.