ULTRASONIC: Unlike other humidifiers, this mist humidifier has zero noise technology which lets you use it while sleeping with no disruptions, making it perfect for your baby's room as well!ETL APPROVAL: Our products are ETL approved which ensures that it is made from safe products and isn't dangerous to use. Enjoy quality performance completely worry free!MULTIPLE SETTINGS: Conveniently set the humidity levels to your liking using the easy touchpad or the included remote control for simple customization and maximum comfort.EXCELLENT COVERAGE: This 5 liter tank covers 40-50 square meters and features 360 degree mist outlets and a 12 hour timer to ensure that you get the most out of this powerful humidifier.BUILT-IN REPLACEABLE FILTER: Ensure clean water! The built in replaceable filter will keep bacteria and germs from building up, causing bad odors, & causing illness! A convenient cleaning brush is also clipped onto the underside of the tank for cleaning the humidifier and ultrasonic disc.