About this itemBreathe in total comfort on the go. The HoMedics TotalComfort Portable Ultrasonic Humidifier disperses visible cool mist with 2 adjustable mist settings. Small enough to fit in your car cup holder, it’s perfect for personal space. The easy-to-fill 8.5-oz. tank features up to 10 hours of runtime when plugged in and up to 2.5 hours when using the rechargeable battery with auto-shutoff protection after 12 hours. Clean Tank Technology helps protect the tank from mold and mildew. Plus, a built-in color-changing accent light with on/off allows you to customize your ambience. Features