Levoit OasisMist 1000S Review: A 10L Smart Humidifier That Runs 100 Hours
Levoit's OasisMist 1000S is a 10L smart humidifier with up to 100 hours of runtime, coverage up to 600 ft² and Auto, Plant, Aroma and Sleep modes.
By Daniel Brooks
Updated October 31, 2026
The Levoit OasisMist 1000S Smart Humidifier is a 10L smart cool mist humidifier with up to 100 hours of runtime, coverage up to 600 ft² and dedicated Auto, Plant, Aroma and Sleep modes. For more models, see our Humidifiers page.
Our Verdict
The 1000S is a set-and-forget humidifier. Its 10L tank means you refill every few days instead of every night, and app schedules plus Auto Mode keep the room in range without any attention.
It is cool mist only and big enough that it belongs on the floor. If you want warm mist, Levoit’s LV600S or OasisMist warm models are a better match.
Levoit OasisMist 1000S Smart Humidifier
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Levoit |
| Model | OasisMist 1000S |
| Tank | 10L |
| Coverage | Up to 600 ft² |
| Output | 350mL per hour |
| Runtime | Up to 100 hours |
| Modes | Auto, Plant, Aroma, Sleep |
| Controls | VeSync app, voice, remote |
| Fill | Wide top fill opening |
Design
The 10L tank has a wide top fill opening, so refills take one step with no heavy lifting, and the opening makes cleaning easier too.
A mist column more than 5 feet high and a 350mL per hour output spread moisture through rooms up to 600 ft².
Controls
Four modes cover most needs: Auto keeps humidity steady, Plant raises it for houseplants, Aroma diffuses oils and Sleep keeps it quiet at night.
The VeSync app handles schedules and custom humidity targets, and voice control and a remote cover the times you do not want to reach for your phone.
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 DREO 747S, both are large smart tanks with app control; the DREO holds 11L and is rated quieter, while the Levoit has a dedicated Plant Mode.
Against the Levoit LV600S, the 1000S runs much longer per fill but lacks warm mist.
Pros and Cons
| Pros | Cons |
|---|---|
| 10L tank, up to 100 hours | Cool mist only |
| Plant Mode for houseplants | Large footprint |
| App, voice and remote control | Heavy when full |
| Wide top fill opening | Needs Wi-Fi for app |
| Auto Mode | White dust possible with hard water |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Large bedrooms | Small nightstands |
| Living rooms | Warm mist fans |
| Plant owners | Tight spaces |
| People who hate nightly refills | Homes without Wi-Fi |
For more options, see our picks for the best smart humidifiers and the best Levoit humidifiers.
To see how it ranks against similar models, read our best smart humidifiers, best levoit humidifiers and best humidifiers with remote.
Final Verdict
The Levoit OasisMist 1000S Smart Humidifier is a long-running smart humidifier that suits large rooms and plant lovers who want to refill only every few days. You can check the current price and details for the Levoit OasisMist 1000S Smart Humidifier.
Frequently Asked Questions
How long does the Levoit OasisMist 1000S run?
Up to 100 hours on a full 10L tank.
How much space does it cover?
Up to 600 ft².
Does it have warm mist?
No, it is cool mist only.
What modes does it have?
Auto, Plant, Aroma and Sleep.
Can I control it remotely?
Yes, through the VeSync app, voice control or the remote.
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.