Warm mist humidifiers were tested by the Hammacher Schlemmer Institute and this one won hands down as the Best Warm Mist Humidifier. The main reason this humidifier won the title was due to the fact that it quickly air moisture and automatically sustained the preferred relative humidity. The test proved that this humidifier increased relative humidity by 24% in 1 1/2 hours whereas others tested only showed a 13% improvement in the same time. Features include the ability to select a humidity level between 40% and 80%, built-in humidistat that turns of the unit once the desired relative humidity is met.

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