- "We got gassed."
"Are we in some sort of trouble?"
"Was it the gas or the prison cell that was your first clue?" - ―Lt. Colonel John Sheppard and Dr. Rodney McKay[src]
Genii gas is a non-lethal gas used by the Genii that can render people unconscious. The Genii have an injection that makes people unaffected to it.
History[]

Sheppard getting an injection to wake him from the gas.
In 2006, Lt. Colonel John Sheppard, Dr. Rodney McKay and some Marines went to the planet M6R-867 to raid Ladon Radim of his Zero Point Module. They found him and the ZPM in a room. The doors slid shut and the gas was released. It quickly caused Sheppard and his team to collapse unconscious.
Ladon remained unaffected due to having taken an injection and he then gave to Sheppard, which woke him up. When asked about his men, Ladon told him that they'd wake up in an hour or so with a pretty big headache but that they'd be fine like him. (SGA: "Coup D'etat")
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Genii | Athor • Cowen • Craden • Faber • Fortnum • Genii Commander (The Brotherhood) • Genii Private (The Storm) • Haemon • Heiron • Idos • Kanayo • Acastus Kolya • Lanko • Argan Loci • Cassel Massan • Miklies • Davon Minos • Pranos • Prenum • Dahlia Radim • Ladon Radim • Tass • Tathal • Toran • Tyrus • Sora Tyrus • Varelon |
Genii outposts | Genii homeworld • Genii outpost • Genii outpost 17 • Kolya's planet • M1K-177 • M5V-801 • M6R-867 • Sorth • Taadin • World (Common Ground) |
Genii technology | Genii A-bomb • Genii Army uniform • Genii communicator • Genii computer • Genii explosive • Genii gas • Genii harpoon • Genii knife • Genii pistol • Genii revolver • Genii semi-automatic machine gun • Genii shotgun • Genii taser rod • Interface device • Sora Tyrus' knife • Telescope |
Terms | Elite Guard • Genii Confederation |