?Quiet Operation?: Our air humidifier utilizes the latest ultrasonic technology, which makes it run more quietly with a noise level of less than 28 dB. This ensures that it will not disturb you while you are sleeping or working. Plus, just make sure the cotton core is soaked for 5-10 minutes before turning on the machine to get the best results. ? Multiple Protections?: With the smart chip and physical probe in our extreme-life battery desktop humidifier, we provide triple anti-dry protection. If the top cover is lifted or the humidifier is dumped, the power is automatically cut off, and the water protection is cut off as well. With these safety features, you can feel at ease using the small humidifier in any situation. ?Dual Nozzle Design?: JISULIFE 500ml plant humidifier comes with a dual nozzle design that supports intermittent single spray mode and continuous double spray mode. Personal humidifier offers a high humidification rate of up to 98%, which can be adjusted according to the humidity of different environments to provide you with a comfortable and healthy humidity experience. ?Wireless and Portable?: JISULIFE portable humidifier has a built-in 4000mAh large battery, which provides long-lasting humidification for up to 14 hours with a single jet and 7 hours with double jets. Its small and portable design makes it easy to use in a variety of environments such as the bedroom, office, or even while you're traveling. ?Optimal Humidity?: JISULIFE mini humidifier microporous atomizing sheet uses ultrasonic transducer ceramic sheet technology to break water molecules at high frequency, resulting in a fine and even mist that spreads throughout your room. Small humidifier increases the hydration effect of the mist by 60%, creating a healthy humidity environment for you to breathe easier.