【Portable size】 This personal fan has only 8 inches, lightweight laptop design, easy to wear, very suitable for home, office, travel. Three wind speeds for you to choose. 【Evaporative air cooler】 equipped with the latest evaporation cooling technology, portable air cooler sucks hot air and makes it pass through a Wet filter, expelled the cooling wind and refreshing air. Humidification wind cooling it can keep you cool and keep your skin wet, more comfortable and healthier than staying up all day in an air-conditioned room. 【Energy saving and health】 The little ones Air circulators do not contain refrigerant. Energy consumption is the same as that of electric light bulbs, without fluorion, and much cheaper than the use of fluorine air conditioners in hot summer. No fan blade is exposed outside, does not hurt anyone and can be safely used by children or pets. 【500ml Integrated water tank】 This cooler d Air can last 6 hours provided complete the tank. Silent shipment of fresh air, free