Sunpentown SU-4010

The Sunpentown SU-4010 is an ultrasonic tabletop humidifier that can produce either warm or cool mist -- enough to humidify 500 square feet of space. The moisture output can be adjusted with a manual dial, but there is no built-in humidistat. Users say that this humidifier produces plenty of good, fine mist, and it runs quietly.

Bottom line

The Sunpentown SU-4010 is an excellent option for consumers who are looking for a humidifier that is compact and can emit either cool or warm mist. There aren't too many bells or whistles on this model, but provided you pay close attention while filling this tank, it should satisfy most consumer's needs. If you have concerns about durability, the more expensive Air-O-Swiss Ultrasonic 7144 (*Est. $ 200) may prove more reliable.

Ease of use

Minimal features, but simple and effective humidifier: The Sunpentown SU-4010 humidifier is an excellent pick for those consumers who are looking for a straightforward machine with both cool- and warm-mist options. The large control knobs are easy to use, and users praise the Sunpentown's dual nozzles, which rotate 360 degrees to pinpoint where you want the mist to go.

Moisture output

Fine mist, but some durability issues: This ultrasonic model can produce either warm or cool mist, enough to humidify 500 square feet of space. The moisture output can be adjusted with a manual dial, but there is no built-in humidistat. Users say that this humidifier produces plenty of fine mist, and it runs quietly. Thanks to its demineralization cartridge (called the Ion Exchange Filter), it does not leave behind white dust like many ultrasonic humidifiers.

Noise

A low humming, but otherwise quiet: Most reviewers agree that the Sunpentown SU-4010 is incredibly quiet. It generates a low humming noise when on, but most consumers and reviewers say that it is only nominally noticeable.

Ownership

Generally positive consumer feedback: While most reviewers were generally happy with the Sunpentown SU-4010 humidifier, we did find some who noted problems with leaking. Other reviewers say this can be easily fixed by simply paying closer attention to the washer when screwing the cap back on (it sometimes can become knocked out of place). However, most reviewers say that for a lower price than most ultrasonic models, this version is a good buy.