Ultra Quiet and Very Safe: The air humidifier operates at nearly silent 23 dB thanks to ultrasonic technology, ensuring it does not disturb your daily activities. It features an automatic shut-off function when the water tank is empty, enhancing safety and extending the product's lifespan. Note: If the inner core appears tilted, this is normal and does not affect performance. Large Capacity and Digital Display: With a 500ml water tank, the humidifier provides long-lasting operation. The digital display clearly shows remaining water levels. Compatible with standard USB power sources for convenient operation. Adjustable Mist Output: The ultrasonic humidifier offers two mist modessingle and double mistalong with adjustable output up to 45ML/H, allowing you to customize humidity levels for optimal comfort. Night Light Function: The soft LED light helps ease discomfort in dark environments and is gentle on the eyes. It provides convenient visibility during nighttime without the need to turn on bright overhead lighting. High-Quality Materials: Constructed from premium ABS and silicone materials, the humidifier is BPA-free and safe for use in homes. If you have any questions, feel free to reach out for support.