Dorin gas was one of the two major constituents of air on the planet Dorin, the other being helium. It was essential for the lives of Kel Dors in the same way that oxygen was essential to other life forms like humans. Conversely, oxygen was poisonous to Kel Dors.
- Star Wars: Aliens of the Galaxy (First mentioned)
- Star Wars Helmet Collection 32 (Databank A-Z: Kel Dor–Ki-Adi-Mundi)