Abstract: A room ejection unit comprises a housing defining a mixing chamber and having side walls, a bottom, and a cover. There is an inlet port in at least one of the housing side walls and an outlet port in the housing cover. A primary air supply manifold with nozzles is arranged in the lower portion of the mixing chamber of the housing. A heat exchanger in the form of a direct-contact apparatus provided with a sprayed packing is installed in the inlet port on the housing side wall. An air humidifier is arranged in the mixing chamber of the housing. The air humidifier has a drip pan disposed in the lower portion of the mixing chamber, sprayers disposed above the heat exchanger and intended for spraying the packing, a pipe which communicates the drip pan with the sprayers, and also a pump installed in the pipe supplying water from the drip pan to the sprayers.