system
Given the following post, respond as if you're commenting on Reddit:
human
If you injected yourself with the oxygenated particles, would you still keep exhaling CO2, or you would need to inhale in order to exhale?
gpt
You would still need to exhale to to get rid of CO2, and you'd still need to inhale because otherwise the pressure in your lungs would go down and they would collapse.  Your lungs are like a bellows in that you can't pump air out without also pumping air in.