... capacity, 5000~70000 m3/h airflow.function: air supply, cooling, heating, humidifying, air-purifying and others are integrated in a ... and fan section, low noiseForward curve centrifugal fans for air treatment section and axial fans for condensation sectionFront, size ... devices for the main components.Optional:Economizer with fresh, return air dampers with cowlwater heating coilMetal or plastic mesh on ...