Air handling unit with ceiling type and floor standing type which can be widely used combined with chiller in HVAC systems. Units with advanced anti-freeze heat exchanger can prevent unit from frost cracking in winter. Coil with special thermal design can make heat exchanging raise efficiency. Unit equipped with low noise & strong air flow fan, which can show you great performance. Casing is formed by foam board and aluminum alloy frame, high density sponge is used for sealing gaps which guarantee lowest air leakage.