Check the listing for details. Hilife 3L Ultrasonic Cool Mist Set Exact Humidity Humidifier Automatic. Color: White, Condition: Open box. Listed at 24.65 USD. OPEN BOX/ITEM IN PERFECT CONDITION Introducing the Hilife Ultrasonic Cool Mist Humidifier, designed to provide a comfortable and healthy living environment. This tabletop humidifier operates quietly and efficiently, ensuring that your space is always filled with the right level of humidity. With a 3L water tank capacity, it can run continuously for up to 30 hours, providing you with ample time to relax and breathe easy. The humidification method used is ultrasonic, ensuring that the moisture released is clean and safe. The automatic feature ensures that the humidity level is always maintained at the set level, making it hassle-free to use. The white color and sleek design blend seamlessly into any home decor.