ULTRASONIC COOL MIST TECHNOLOGY: Safely moisturizes the air for up to 16 hours of continuous operation so you can breathe easy and get more restful sleep | High and low speed settings make it easy to adjust mist direction and speed to fit your comfort level 1.5-LITER WATER TANK: Provides ideal coverage for bedrooms, offices, and other medium-sized rooms OPTIONAL NIGHT LIGHT: Offers soothing glow for maximum relaxation AUTOMATIC SHUT-OFF: Turns humidifier off when water level is low or the water tank is removed WHAT YOU GET: Humidifier, AC power adapter, disk cleaning brush, user manual, industry-leading 5 Year Warranty, caring customer support 7 days a week, and the peace of mind that comes from a trusted brand with millions of customers worldwide.