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SPT SU-4010 Review

By: Carl Laron on October 27, 2017

Bottom Line

The SPT SU-4010 is an excellent option for those looking for a top performing ultrasonic humidifier at an easy to swallow price. It's compact, effective and can emit either cool or warm mist.

Pros

  • Quiet
  • Variable humidity
  • Produces cool or warm mist

Cons

  • No humidistat
  • May leak
  • Some durability problems
Our Analysis
Specs
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Breaking it down

Ease of use

Minimal features, but simple and effective. The SPT (formerly Sunpentown) SU-4010 humidifier is an excellent pick for those users 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 SPT's dual nozzles, which rotate 360 degrees to pinpoint where you want the mist to go. Some experts say that cleaning is a chore, but others note that ease of cleaning is above average compared to most ultrasonic humidifiers.

Moisture output

Fine mist, few issues with dust. 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. Its demineralization cartridge (called the Ion Exchange Filter) seems relatively effective as we saw fewer complaints of dust residue than with other ultrasonic humidifiers, though the SPT SU-4010 is not completely immune from that issue.

Noise

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

Ownership

Some durability concerns. User feedback for the SPT SU-4010 is mixed, but very much in line with most ultrasonic humidifiers, including those that cost twice as much. While most owners are generally happy with the SPT SU-4010 humidifier, questions about durability, and reports of units that failed prematurely, are easy to spot. We also found some owners that noted problems with leaking. Others 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). The value of the SU-4010 compared to other options comes in for kudos.

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