Application:
QF-50 Evaporative Portable Air Cooler (also called water cooler, swamp cooler, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from typical air conditioning systems which use vapor-compression or absorption refrigeration cycles. Evaporative cooling works by employing water's largeenthalpy of vaporization.The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation), which can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants.

Advantage:
1) Reduce temp. 5-10 celcius degree in short time, good efficiency with 3 sides air inlet
2) Saving more than 80% electricity compares with air conditioner
3) Easy to instoall, take away and clean with direct water for cooling pads and dust filters
4) Optioanl LCD+Remote Controller & Manual operation
5) Self desian fan impeller, with large and long-distance strong airflow
6) Sleep wind and natural wind for selections
7) With water shortge warning system to fully protect water pump