【Ultrasonic Cool Mist Humidifier】Ultrasonic cool mist technology safely and quickly moisturizes dry air for up to 45 hours of continuous operation in small, medium to large rooms. Powerful mist output with high and low settings makes this humidifier ideal for bedrooms, kids’ rooms, baby nurseries, offices, and indoor plants mushrooms. 【Easy Top-Fill Design】Features an innovative bottom water tank design and wide tank top funnel design. Easily refill the humidifier by opening the cover and adding water directly to the water tank for minimal water leakage, or adding water directly to the top no need to open the cover. Easy to fill, empty, and clean.