Portable Air Conditioner, Upgraded Multifunction 4 in 1 Cooling Fan with 3 Speed, USB Mini Personal Air Cooler for Room Tent Office Bedroom (Black)

??NEW UPGRADE: We have updated the cartridge material and fan motor from the previous generation, with more powerful cooling and air cleaning ability. The operation is more silent, under 22dB, making your heart feel calm day and night. ??4 in 1: Four uses are integrated in this Air Conditioner. Fan, air conditioner, humidifier, and air purifier. It can be used all year round to cool you down in the hot summer and humidify the air in the dry fall and winter. Stay away from dry, hot air and enjoy the mist. ??LONG LASTING COOLING: We have improved the overall operating efficiency while increasing the capacity of the water tank. The high quality cartridge reduces water consumption and allows for 8 hours of continuous use of the cooling function, ensuring you a restful night's sleep. ??Purifying air and 3 MODES: Cooling fan can suck the surrounding hot air into the fine fiber water curtain and change the hot air into cold air through atomization, while adsorbing airborne particles and cleaning the circulating air. Also has three wind modes (low / medium / high) to meet your use needs. ??COMPACT AND PORTABLE: With an overall size of only 6.5 x 6.2 x 5.5 inches, you can easily put it in your backpack, luggage, etc. The USB power supply allows you to make it work when you are on the go, using your laptop, rechargeable battery. Perfect for bedroom, office, dorm, travel, etc. Enjoy cool anytime, anywhere.