It’s also the only model we currently recommend that offers warm mist capabilities. Its 1.5-gallon tank is big enough to last all day, and its fill hole is wide enough that you won’t have to scrub around any awkward corners. It has plenty of other thoughtful features that make it stand out from other humidifiers, too. Over-humidification of a room has been the flaw of nearly every ultrasonic humidifier we’ve tested since 2013-including the non-smart version of this same humidifier, which we recommended from 2018 to 2022. This sounds like it should be the most basic expectation for a humidifier, but it is in fact a rare and remarkable feat. It also does something that almost no other ultrasonic humidifier can claim to do: It can achieve a target humidity level and maintain it on an auto setting that actually works, thanks to a built-in humidistat and functional smart features.

It’s easy to clean, and it humidifies the air quickly and (almost) silently, and it won’t bother you at night with beeping or bright lights.

The Levoit LV600S Smart Hybrid Ultrasonic Humidifier does everything right.

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