Portable air cooler: Detailed Products Description: Model: AZL04-LY12B Airflow(M3/h):4000/2500 Pressure(Pa):150/70 Output(W):200W V/Hz:220/50-60 Rated Currency(A):1.5/1.7 Fan Type: Centrifugal Motor Type:2-speed Noise(dBA):≤65 Dimension(mm):620*510*810 Fan Diameter:225*300mm Net Weight(±3kgs):40 Our Advantages: 1.window unit 2.2-speed motor 3.comfortable cool fresh air 4.low running and operating cost. 5.easy to install and maintain 6.spot cooling How does it Work AOLAN cooler is a cooling system using the Evaporative Cooling Method. It is aAUSTRILIAN TECHNOLOGY that is now widely used in many parts of the world. AOLAN cooler uses NATURAL RENEWABLE ENERGY, NO FREON, NO CONDENSER. It only uses Air and Water which passes thru a COOLING PAD: the principle of TEMPERATURE LOWERING.