In Avatar the Last airbender, there is that episode where Avatar Roku was battling the volcano then FireLord sozin came to help.
He (FireLord Sozin) did this whirling thing with his hands and the poisonous gases seemed to enter through his fingers on one side and out the other hand - just like someone is redirecting lightning.
Lightning is understandable since it's energy, a force; but how does gases behave that way? What exactly is he doing there?
Check picture below: