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4-in-1 portable air cooler designed to combine personal cooling, airflow circulation, humidifying and mist functions in one compact device. Ideal for bedrooms, offices, dorm rooms and other personal spaces where flexible cooling is preferred. Equipped with a large-capacity water tank for extended mist operation and enhanced comfort, with the option to add cold water for a more refreshing airflow experience. Featuring 3 adjustable fan speeds and 3 mist levels, it allows customized airflow and moisture settings to match different environments and preferences. The low-noise design helps maintain a comfortable atmosphere for sleeping, studying or working. Powered by USB-C and compatible with power banks, laptops and car chargers for convenient use at home, travel and outdoor activities.