Portable Air Cooler with Convenient and Economic Design, Measures 820 x 720 x 1,110mm Specifications: Air circulation: 6,000, 4,500 and 3,000m3 Air pressure: 100 to 120 Outlet air speed: 5 to 8m/s Evaporating efficiency: 72 to 92% Noise: 40 to 50dB Cool-down result: 4 to 10 degrees Celsius Suitable area: 30 to 50m2 Air out way: sideward Fan type: propeller fan Evaporator: 0.55m2 Voltage: 220V, ± ...