General description This Portable USB Cool Mist Humidifier Fan innovatively combines cooling and humidification functions, making it an essential companion for hot summer days. It effectively cools and moisturizes the air, helping to relieve congestion and dryness with just one device. Its compact design allows for easy storage and portability, fitting conveniently in a backpack, drawer, or car cup holder. Technical specifications Dimensions: 22cm × 9.5cm × 15cm Battery: Built-in 500mAh rechargeable battery Charging: Type-C fast charging interface Operating time: 4-6 hours (depending on wind speed level) Noise level: As low as 25 dB Water tank capacity: 180ml Usage Office: Combat air conditioning dryness and improve work efficiency Bedroom: Creates a comfortable sleeping environment Outdoor: Lightweight and portable for picnics and outdoor activities Car: Can be powered with a car charger for fresh air during traffic jams Other information Water Shortage Protection: Automatically cuts