The Geysair module is seen above installed on the left side of a BainUltra Meridian Bath. The turbine is at the right with the yet-to-be-installed key pad attached. Here is how the system works: Air is drawn in through the bottom of the turbine, heated, and blown out at the top of the unit where it begins a journey up and down the backrest (that’s the squiggly course in the center of the picture). Note that in doing so, the backrest becomes heated! The heated air then enters the top of the Geysair unit, and is injected with a fine, metered spray of hot water supplied through the coil of hose on the far left of the picture. (The hose in the picture has not yet been connected to the incoming hot water line leading to the faucet). The addition of hot water to the air channel humidifies the channel air, greatly reducing the cold feeling of the air as it enters the bath. The bath is more comfortable, the water stays hot longer, and the bather enjoys an extended massage without the inconvenience of having to add more hot water.