【Efficient Cooling Fan】This portable air conditioner features three ultrasonic atomizing humidification nozzles and a powerful DC motor with a state-of-the-art honeycomb waterfall system. It can reduce the room temperature by 7 to 10°C, instantly providing you with powerful, cool, and refreshing airflow. 【Efficient Airflow Customization】 Choose from three wind speed modes (natural breeze/low/high speed) and three mist modes (low cooling mist/medium cooling mist/high cooling mist) to customize your experience. The ultrasonic atomizer and triple wet cooling technology instantly produce refreshing mist. 【Smart and Efficient Energy-Saving Cooling】 With 8.5W power and a large 1000ml water tank, this 8.5W portable air conditioner delivers powerful airflow while incorporating energy-saving features. The 1000ml water tank allows up to 10 to 12 hours of continuous operation in initial mode. 【Multifunctional and Ultra-Quiet】 This four-in-one model combines a small personal air cooler, a desk