Air Innovations Clean Mist Smart Ultrasonic Humidifier 80 Hour Run Time Model MH-512 Platinum Permanent Ceramic Filter you never have to change Create a clean, comfortable breathing environment with the Air Innovations 1.5 Gallon Cool Mist Digital Humidifier Designed to operate quietly for uninterrupted sleep Provides moisture for up to 80 hours on the low setting 1-year limited manufacturer's warranty