The dual nozzles accelerate the spray speed of this humidifier, offering three modes: continuous, alternating, and intermittent. You can spray for up to 12 hours in continuous mode and up to 24 hours in intermittent mode. The quiet mode uses light modulation technology to operate at less than 35 dB of noise, avoiding any disturbance day or night. This creates a healthy and calm environment for your baby while maintaining optimal humidity. This desktop USB humidifier is lightweight and easy to carry. It features 7 changing LED colors, beautiful and comfortable. Made of BPA-free material, completely safe for babies and children. It is an ideal gift for friends and family. All functions of the portable USB humidifier can be controlled with a single button, making it very convenient to use. Simply press this button to adjust the mist level, simplifying your daily life. Here are some important reminders for using a humidifier: 1) Use clean tap water or mineral water. Avoid using essential