Oxygen XX
Bogus Blimp
42
Displays
Oxygen. Funny really. [Oxygen:] Good. [Carbondioxide:] Bad. You need 2% bad to survive. To little: you grow dizzy. To much: You grow tired.
Oxygen. Funny really. [Oxygen:] Good. [Carbondioxide:] Bad. You need 2% bad to survive. To little: you grow dizzy. To much: You grow tired.