"Generates radioactive gas from interstellar energy waves."
The Gas Collector is a 2x2 room that allows you to farm Gas without having to battle. This is really useful as Gas is a heavily used and scarce resource. This is because it's used much more than Minerals in the game. Usually you shouldn't equip this collector in battle as it's a big waste of space. Remove it for battles and put it back when you're done.