Mestex is a manufacturer of Heating, Ventilating, and Air Conditioning (HVAC) equipment ideal for controlling the temperature and quality of the indoor air in any commercial or industrial building. Our product mix marketed under the Applied Air, Alton, Aztec, Temprite and LJ Wing names, includes packaged dedicated outdoor air systems, ventilation equipment, direct gas fired, indirect gas fired, air turnover, and evaporative cooling systems. Mestex HVAC systems can provide makeup air, ventilation air, space heating, space cooling or “green” cooling to all building types including data centers and other mission critical applications.