Soothing Air Helps Your Baby Sleep Peacefully . Help your baby breathe easier with this high-performance Cool Mist Humidifier - 4.0 Gallon Daily Output that automatically maintains your pre-set humidity level. Designed with busy parents in mind, it has convenient features like a dishwasher safe tank and tray to make weekly cleaning a no-brainer. And its easy fill tank makes making filling fast and easy. It runs for up to 24 hours per refill, and includes an easy to change drop-in filter. Great for the nursery, bedroom or larger rooms, it covers a 1200 square-foot area. Our quiet setting helps baby sleep more peacefully and true air technology helps Mom rest easier too, knowing baby can breathe more comfortably..