About this product Portable USB Cool Air Humidifier Fan - Cools and Moisturizes All Summer Long 【Cold Air Humidification, Double Effect in One】 It innovatively combines cooling and humidification functions. Thanks to the built-in micro-circulation water system, it converts clean water into fine water mist, and with the centrifugal fan At high speed, it blows out a cool and humid airflow. In the hot summer, you can feel the coolness and relieve the dryness of the air, solving the dual problems of congestion and tight skin with one machine. [Mini Size, Portable] The 22cm × 9.5cm × 15cm slim body is easier to store than a mobile phone and can be easily placed in a backpack, drawer, or car cup holder. The simple and pure Matcha color design is combined with a frosted shell, giving it a luxurious texture. Whether at your desk, at your bedside in the dorm, or during an outdoor picnic or travel, it can be your exclusive cooling partner. 【USB Powered, 500mAh Long-Lasting Battery】 Built-in