Provided is a gas flow indicator apparatus including a gas flow chamber, an inlet port, an outlet port and a gas flow signal means movably disposed within the chamber. The chamber includes an opaque portion and a transparent portion whereby, when there is no gas flow or there is gas flow through the chamber, the gas flow being less than a predetermined gas flow rate, the gas flow signal means is disposed substantially within one of the opaque portion and the transparent portion of the chamber, and whereby, when there is gas flow through the chamber, the gas flow achieving and/or maintaining the predetermined gas flow rate, the gas flow signal means is moved so that the gas flow signal means is disposed substantially within the other of the opaque portion and the transparent portion of the chamber. The gas flow indicator apparatus of the present invention allows for an easy visual indication to readily identify whether or not gas flow is present or flowing at a predetermined rate.
