because you're using up your OXYGEN,
Money Heist Season 3, Episode 6
Let's get him 2 grams of OXYGEN.
Breaking Bad Season 3, Episode 8
What am I doing?
I'm using up all the OXYGEN.
The Big Bang Theory Season 6, Episode 3
The OXYGEN comes first.
Money Heist Season 3, Episode 3
or closing off his OXYGEN.
Money Heist Season 3, Episode 4