Crane's 2 in 1 device features both a warm mist humidifier function and a personal steam inhaler function. No matter what function is being used, an auto shutoff safety function is built in if the unit runs out of water, overheats, or is not assembled properly. Crane's warm mist humidifier has a 0.5 Gal. tank capacity and can run whisper quite for up to 13 hours. Our humidifiers are filter free, but we offer an optional demineralization filter (HS-1932) for those with excessive minerals in their water that screws directly into the tank. The humidifier is effective up to 250 ft. and helps relieve cough, cold, and flu symptoms, nasal congestion, dry cough, sinus irritation, nose bleeds, and dry skin and hair. The personal steam inhaler can be easily setup by simply replacing the humidifier tank with the inhaler attachment. The steam inhaler is a recommended non-medicated alternative to over the counter cough and cold medicine. Cranes 0.5 Gal. warm mist humidifier heats up to 131 degrees Fahrenheit ensuring germ free mist; This humidifier is made with clean control anti-microbial material which reduces mold and bacteria growth by up to 99.96%; The humidifier function is also equipped with a medicine cup and is compatible with the HS-1950 & HS-1950L vapor pads. Crane's easy to clean humidifier design features a detachable bottom fill tank, which is recommended by health professionals for promoting clean humidifier habits; The mist chamber and cap also are removable, giving you access to clean the entire base; We recommend cleaning the humidifier based on frequency of use and provide many educational resources on how to clean your humidifier.1-year limited manufacturer warranty included. Steam Inhaler Bacteria Free Mist Easy to Clean | Crane 2-in-1 Warm Mist Humidifier & Personal Steam Inhaler for Small to Medium Rooms