Zehnder Group AG, together with its subsidiaries, develops, manufactures, and sells indoor climate systems in Europe, North America, and China. The company offers decorative radiators, heating and cooling ceiling systems, indoor ventilation systems, heat exchangers, and clean air systems. It operates under the Zehnder, Acova, Caladair, CORE, Enervent, Filtech, Greenwood, Lifebreath, Rittling, Runtal, Fortuneway, and Nather brand names. The company was founded in 1895 and is headquartered in Gränichen, Switzerland.