DOGU HVAC founded in 1999, and ever since has been manufacturing energy and cost-efficient and constantly enhancing to provide an integrated solution for well-being. DOGU HVAC's core business products which are subsumed under 6 major groups as Air Handling Units, Rooftops, Heat/Energy Recovery Units, Air Distribution & Management Products, Air Purifiers and Kitchen Ventilation Equipment are all produced under the compliance with EU standards. Particularly AHU and HRU-ER units are entitled under the "FOUR SEASONS" brand name for domestic and foreign markets. DOGU HVAC's, headquarter in Izmir/Turkey, operates in a large-sized plant spread over 2 factories, in total 17.500 sqm indoor space that enables DOGU HVAC manufactures 180 various type of products. Additionally, DOGUHVAC has a powerful sales network with 4 sales offices located in Istanbul, Ankara, Antalya and Adana in Turkey as well as authorized dealers in many other countries for sales and after sales operations. DOGU HVAC has been exporting to more than 55 countries.