ALLEN 2.8L "Water Drop" Shape Cool Mist Ultrasonic Air Humidifier Vaporizer Cleaner Quiet Aroma Steam Rainbow Colors LED Lights 360 degree rotation air humidity with adjustable mist outlet Large capacity water tank: 2.8 L & built-in essential oil slot Detachable mist outlet, convenient to clean Amazing and romantic 7 rainbow LED night lights Fabulous ionizer purification for fresh air & automatic power off when out of water