Bedroom Humidifier, Three Modes, Dual Mist Outlet 3.8L Extra Large Cool Mist Humidifier with Night Light, Top Filling, Silent Ultrasonic Humidifier for Home, Large Room, Baby Room and Plants Features: 1.3.8L Large Water Tank: The impressive 3.8L water tank provides up to 40 hours of moisture, and the built-in humidity sensor adjusts the humidity level to maintain a consistent and healthy environment. No more troubles with stuffy noses, coughs, and dry skin. This humidifier is perfect for bedrooms, baby rooms, offices, and indoor plants. .