system
Given the following post, respond as if you're commenting on Reddit:
human
Why does CO2 from carbonated drinks have that distinctive "feel" and taste, but the CO2 from my lungs doesn't?

By "CO2" from my lungs, I mean the air that I normally exhale when breathing.
gpt
CO2 in Water becomes H2CO3, also known as carbonic acid. This acid form can most likely interact with some your taste receptors, hence the taste. The different feel might just be due to the many small bubbles being created in carbonated drinks.

If you were to collect and concentrate the CO2 you exhale and then incubate it under pressure with water, you would get back to the same effect.