Sunpentown Ultrasonic Dual Mist Humidifier Model SU4010
This compact humidifier offers the convenience of both warm and cool mist capability, while being extremely quiet thanks to its ultrasonic technology. The Sunpentown SU-4010 is capable of humidifying rooms of up to 500 square feet, while including an ion exchange filter to de-mineralize water and prevent a buildup of white dust.
This humidifier includes an automatic shutoff safety feature to prevent overheating when the water tank is empty. Although the SU-4010 is not as easy as some to clean, it includes a carrying handle and is overall simple to operate. The warm mist function can take a few minutes to actually build up warmth, but both warm and cool mist operation is quiet and effective.