Levoit LV600S Review (2026): Is It Worth $109?

Yes, if you will use both mist modes. At $109.00, verified via the Amazon Creators API on September 5, 2026, it is the only Levoit that combines a maker-stated 6 L tank, warm and cool mist, a humidistat and app control. If you will only ever run cool mist, Levoit's 6 L smart cool-mist model at $69.98 gives you the same tank size with a published 60 hour runtime and 26 dB figure for $39.02 less, and it is the better value.

Connectivity, and $9.01. Both carry a maker-stated 6 L tank and both offer warm and cool mist. The LV600S adds app control, scheduling and remote monitoring at $109.00; the LV600HH is controlled on the unit at $99.99. Scheduling is the feature with the real payoff, because a humidifier running only overnight uses far less water than one left on all day. If that does not appeal, save the $9.01.

Levoit does not publish a runtime figure for the LV600S in our verified data, so we do not print one. What is published is the tank size: a maker-stated 6 L. Owners consistently report multi-night running at lower output settings, which is what a tank that size implies, but runtime on any humidifier depends heavily on the setting and how dry the room is. For a published figure, Levoit's 6 L smart cool-mist model states up to 60 hours per fill.

It can, because it is an ultrasonic humidifier. Ultrasonic units throw water into the air as a cold fog, and any minerals dissolved in that water travel with it and settle as a fine white powder on nearby surfaces. It is a water issue rather than a fault in the machine. Distilled water removes the problem completely. If you would rather not buy water, an evaporative humidifier such as the Honeywell HCM-350 class unit at $76.42 leaves minerals behind in its wick filter by design.

On cool mist, yes. The American Academy of Pediatrics prefers cool-mist humidifiers in children's rooms because warm-mist and steam units heat water and can scald if tipped or touched, so leave the warm-mist mode off in a nursery. Keep the unit and its cord out of reach, aim for the commonly cited 30 to 50 percent relative humidity band, and clean the tank on a schedule, because any humidifier left dirty can put bacteria and mould into the air.

No. VapoSteam is formulated for steam vaporizers and warm-mist humidifiers with a dedicated medicine cup, such as the Vicks V745 at $39.49 or the V150 steam vaporizer. Putting it, or any essential oil, into an ultrasonic tank damages the plastics and the ultrasonic diaphragm, and manufacturers generally exclude that from warranty coverage. If you want a scented humidifier, buy a model with a separate oil tray or a unit with a medicine cup.

It depends on whether you are solving a season or a symptom. The Vicks V745 at $39.49 is a 1 gallon warm-mist humidifier with two speeds, auto shut-off and a medicine cup, and it is the right buy if warm mist during colds is the entire job. The LV600S at $109.00 is a year-round machine: warm mist in winter, cool mist otherwise, a humidistat that holds a target, and scheduling. Pay the $69.51 difference if you want the humidifier running most of the year, not just in January.

Yes, and it is the strongest reason to choose it over cheaper units. A humidistat reads the room and works toward a humidity percentage you set, rather than simply running at a fixed fan speed until the tank empties. That matters because the commonly cited healthy indoor range is 30 to 50 percent, and pushing a small sealed bedroom past roughly 60 percent invites mould and dust mites. Without a humidistat, you are the humidistat.