Symphony 56 Liters Master Cool 56XL+ Desert Air Cooler. Dura-pump technology provides the pump`s extended life in Winter 56.Cool flow dispensers provide channelized water distribution, resulting in improved cooling in the surrounding environment.A strong fan with a three-speed motor delivers tremendous air throw with automatic swing.4-sided aspen pads improve cooling.Winter 56`s whisper-quiet performance keeps you undisturbed and allows you to sleep soundly while providing optimal cooling.The cooler can be moved easily thanks to its multidirectional castor wheels.The large 56 L water tank provides continuous and persistent cooling.Winter consumes just 185 W of energy, showcasing its efficiency.I-pure technology offers multistage air purification with 5 filters for dust, odor, allergy, bacteria, and wash.