About this item 【Super Long Endurance and Strong Mist】Adopted the advanced technology, it lasts for 8 hours at constant mist mode, 14 hours at intermittent mist mode after about 3-4 hours full charge. The personal humidifier sprays 35 ml/h mist to keep you in a comfortable and healthy status. 【Container Diversity+Wide Application】There is no limit to the capacity of the water container. You can choose a large container to meet your long-term humidification needs. And it also fits perfectly in the cup holder of the car. Thanks to its mini figure(1.9x1.9x8 inches, 4.06 oz), this USB humidifier can be competent in various scenarios, whether on a business trip, travel, driving, working, or sleeping. 【Quietness+Easy Operation】The personal mist humidifier adopts the newest ultrasonic technology, which can achieve lower power(3 Watt) and be quieter. The operating noise of this mini humidifier is less than 30dB, it won't disturb your rest even at night. It is easy to use this desk office humidifier with only one button. 【USB Port + Auto Shut off】The wireless car humidifier can work anywhere. And you can plug in a USB port for a charge, power bank, laptop or USB charger is to get easier and more convenient recharge. Less than 4 hours to get a full charge. And the handheld vehicular humidifier can be shut off when the water level is low to prevent equipment damage and ensure the safety of children. 【Safe High-Quality Material】 This mist humidifier is made from ultra-high grade, safe, and eco-friendly BPA materials that offer a stable and long-lasting use experience.(Please make sure the cotton core has soaked for 5-10 minutes before you turn it on)