The Avalon Digital Cool Mist Humidifier with Filter is a highly innovative ultrasonic humidifier. The humidifier can be used for both warm and cool mist. The tank is 5 Liters. You can adjust the level of humidity with the easy to read display or with the use of the convenient remote. The display can be dimmed or turned off in order to not interfere with your sleep. There is a built-in 12 hour timer and 3 mist level settings. The double 360 degree mist outlets allow for better humidity dispersal. There is also a nightlight to light up the tank for your convenience. It’s 5 liter tank will give out 400 ml per hour and will cover 40-50 square meters. The replaceable advanced technology filter will reduce 90% of the limes in the water. With the auto shut-off when the tank is empty you don’t have to worry about ever damaging the machine when the water runs out. The water tank has a convenient carry handle to make refilling so much easier. The items dimensions are 13.5×9.5×5 inches. It is ETL listed and approved for the utmost safety.