Use the Crane Ultrasonic cool mist humidifier to increase the moisture content in your child’s room. It utilizes ultrasonic technology for infusing moisture into the air. This energy efficient unit offers relief from nasal congestion dry coughs and cold and flu symptoms. A control button on this humidifier helps regulating the moisture output as per your need. This home appliance has a detachable water tank with 1-gallon capacity can quietly provide moisture for up to 24 hours on the medium setting. This BPA-free humidifier has an integrated auto-shut-off function that senses an empty tank. Plus this humidifier operates without a filter. The quiet cool mist humidifier is suitable for rooms measuring up to 250 square feet.