A centrifugal gas separator includes a separation chamber defined by a peripheral wall spaced apart from, extending around a central axis of and extending axially between opposite ends of the chamber. A peripheral intake port co-operates with the peripheral wall to introduce a rotating flow of a gaseous intake stream comprising a gas component and a non-gas component along an inside surface of the peripheral wall. A peripheral exhaust port defined through the peripheral wall diverts a radially outermost portion of the rotating flow, including at least some of the non-gas component, to exit the chamber. A gas component output port is configured to allow the gas component to be drawn from an axially central volume of the separation chamber.