 | Medium Room Ultrasonic Humidifier, Runs Up To 24 Hours Per Filling With A 2.8 Gallon Output, Variable Mist Control, Filter Free Operation, Virtually Silent Perfect For Medium Size Rooms, Variable Mist Control, Filter Free Operation & Virtually Silent. 2.8 Gallon, 24 Hours Number of Reviews: 1 | Ratings:  | Best deal: $48 $48 - $88 from 7 stores. |