Hydron-three

Hydron-three was a gas. It was in the atmosphere of the planet Geran, and the native Gerans required hydron-three to breathe. When traveling offworld, they would carry canisters of the precious gas, which could be added into their air intake. Obtaining supplies of the gas offworld could be quite expensive, especially on backwater planets such as Tatooine.

Appearances

 * Tales from Jabba's Palace
 * Skin Deep: The Fat Dancer's Tale