The Aircare SS390D is part of the Humidifier test program at Consumer Reports. In our lab tests, Humidifier models like the SS390D are rated on multiple criteria, such as those listed below.
Output: Output is based on the number of gallons emitted daily per square foot of the recommended humidification area.
Convenience: Convenience is the ease of operating and maintaining a unit.
Noise: Noise is based on the sound level, in decibels, at the unit’s highest operating setting.
Unbiased: Retailers cannot influence placement.
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New products only: You will never find used or refurbished products for sale.
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