Levoit LV600S Review: Smart Warm and Cool Mist for Rooms up to 753 ft²
Levoit's LV600S is a 6L top fill smart humidifier with warm and cool mist, auto mode, app and voice control and coverage up to 753 ft².
By Daniel Brooks
Updated October 31, 2026
The Levoit LV600S Smart Warm and Cool Mist Humidifier is a 6L top fill smart humidifier that combines warm and cool mist with a humidity sensor, app and voice control, and coverage up to 753 ft². For more models, see our Humidifiers page.
Our Verdict
The LV600S is the most complete humidifier in Levoit’s mid-range. Top fill makes refills easy even with a large tank, warm mist adds comfort in winter, and the sensor and app keep the room in a healthy range without constant fiddling.
It costs more than basic cool mist units, and the smart features need Wi-Fi and the VeSync app. If you only need a simple nightstand humidifier, a smaller Levoit does the job for less.
Levoit LV600S Smart Warm and Cool Mist Humidifier
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Levoit |
| Model | LV600S |
| Tank | 6L |
| Coverage | Up to 753 ft² |
| Mist | Warm and cool |
| Noise | Under 28 dB in sleep mode |
| Fill | Top fill |
| Controls | VeSync app, voice, Auto Mode |
| Extras | Aroma box |
Design
The 6L tank opens at the top, so you pour water in place rather than carrying a full tank to the sink and flipping it. The wide opening also makes the inside easier to wipe out during weekly cleaning.
Levoit’s hybrid mist system offers warm and cool mist for even humidification across a large room, and an aroma box takes essential oils if you want a scent.
Controls
Auto Mode uses the built-in sensor to adjust output and hold your target humidity. Sleep Mode drops noise under 28 dB and switches off every display light, which suits light sleepers.
In the VeSync app you can monitor humidity, set schedules and timers, and voice control is supported for hands-free changes.
Placement Tips
Set the humidifier on a flat, water-safe surface at least a couple of feet off the floor if you can, and aim the mist into open air rather than at walls, wood furniture, curtains or electronics. Keep it a few feet from the bed or crib so moisture spreads through the room before it reaches you.
Check the room with a hygrometer for the first few days. Most homes feel best between 40 and 60 percent relative humidity, and if windows start to fog or the room smells musty, turn the output down or let the auto mode hold a lower target.
Running Costs and Care
Running costs are low: a humidifier uses far less electricity than a space heater or air conditioner, and the main extras are water, any filters or wicks, and cleaning supplies. Warm mist models use more power than cool mist or evaporative units because they heat the water.
Empty and dry the tank when you can, and clean it at least once a week so bacteria and mold do not build up. Distilled or filtered water reduces white dust from ultrasonic units and slows scale in every type. Before storing it for summer, clean and dry every part.
How It Compares
Against the Levoit OasisMist 1000S, the LV600S adds warm mist but has a smaller tank and shorter runtime, so the 1000S is better if you want to refill less often.
Against the DREO HM717S, both offer warm and cool mist with app control; the DREO has a larger 8L tank, while the Levoit has a proven top fill design and VeSync app.
Pros and Cons
| Pros | Cons |
|---|---|
| Warm and cool mist | Costs more than basic units |
| Top fill 6L tank | Warm mist uses more power |
| Auto Mode with sensor | Needs Wi-Fi for smart features |
| App and voice control | Larger than nightstand units |
| Quiet sleep mode with lights off | Cleaning still required weekly |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Large bedrooms | Small nightstands |
| Living rooms | Tight budgets |
| Winter congestion | Homes without Wi-Fi |
| Smart home users | Anyone avoiding warm mist |
For more options, see our picks for the best warm and cool mist humidifiers and the best top fill humidifiers.
To see how it ranks against similar models, read our best top fill humidifiers, best levoit humidifiers and best warm and cool mist humidifiers.
Final Verdict
The Levoit LV600S Smart Warm and Cool Mist Humidifier is an easy-to-fill smart humidifier with warm and cool mist that suits large bedrooms and living rooms. You can check the current price and details for the Levoit LV600S Smart Warm and Cool Mist Humidifier.
Frequently Asked Questions
How much space does the Levoit LV600S cover?
Up to 753 ft².
Does it have warm mist?
Yes, it offers both warm and cool mist.
Is it top fill?
Yes, you pour water into the 6L tank from the top.
How quiet is it?
Levoit lists under 28 dB in Sleep Mode.
Can I control it from my phone?
Yes, through the VeSync app, with voice control support.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.