Levoit Smart Humidifier 6.2L
- 6.2 liter tank, top fill
- Up to 62 hours of runtime
- 536 sq ft coverage
- 26 dB on low and sleep mode
- Smart app and voice control, auto mode
- 30 watts, 4.9 pounds
- Cover and sink dishwasher safe, tank hand wash only
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large top fill ultrasonic humidifier with app and voice control, a night light and an essential oil chamber. The tank and silencer cover are hand wash only, and purified or distilled water is recommended.
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ASIN: B0GR99R7XDModel: LUH-N651S-WUSCategory: Humidifiers
Overview
An ultrasonic plate vibrates water into a cool mist, which a rotating nozzle directs across the room, while a top fill opening and a detachable sink simplify refilling and cleaning.
A long runtime, a big tank and smart control suit a large bedroom or nursery, and most water contact parts come apart for cleaning. Distilled water is recommended to avoid white dust.
Who it's for
Families with a nursery, office or large living area who want a big tank and a phone controlled schedule. Those who will not use purified or distilled water should expect more mineral dust.
Pros and cons
- Large top fill tank
- App and voice control
- Essential oil chamber
- Auto and scene modes
- Tank hand wash only
- Distilled water recommended
- Oils go in the aroma chamber only
Performance notes
The ultrasonic plate makes cool mist, and a humidity sensor feeds the auto mode. Mineral dust from tap water is the usual drawback of ultrasonic units, which is why the listing recommends purified or distilled water. Essential oils belong in the aroma chamber, never in the tank.
Where it stands among humidifiers
- 62 hours runtime: longer than 100% of the humidifiers we list.
From the specs of the 46 humidifiers we list; not a test result.
Specifications
| Brand | Levoit |
|---|---|
| Model | LUH-N651S-WUS |
| Dimensions & fit | |
| Item Dimensions D X W X H | 8.8 x 8.8 x 14.1 inches |
| Item weight | 4.9 pounds |
| Capacity & performance | |
| Capacity | 6.2 litershigher than 65% of 27 humidifiers |
| Wattage | 30 watts |
| Noise level | 26 dB or lower on low and sleep mode |
| Power & efficiency | |
| Voltage | 120 volts |
| Construction & materials | |
| Color | White |
| Material | BPA-free waterpath |
| Included components | |
| Included Components | Humidifier, user manual |
| Unit Count | 1 Count |
| Other details | |
| Floor Area | 536 square feet |
| Runtime | Up to 62 hourshigher than 100% of 21 humidifiers |
| Operation Mode | Ultrasonic |
| Room Type | Bedroom, kids room, large room, living room, nursery, office |
| Other Special Features Of The Product | Auto mode, auto shut off, night light, removable tank, scene mode, smart control, top fill |
| Control | App and voice |
| Care | Cover and detachable sink dishwasher safe; water tank and silencer cover hand wash only |
| Item Shape | Round |
| Manufacture Year | 2026 |
Closest rivals on specs
Vornado EVDC500 Energy Smart Evaporative Humidifier- Capacity 1.6 vs 2 gallons (-20%)
Venta LW25 Original Evaporative Humidifier- Capacity 1.6 vs 2 gallons (-20%)
- Floor Area 536 vs 430 sq ft (+25%)
Frida Baby 3-in-1 Cool Mist Humidifier- Capacity 1.6 vs 0.7 gallons (+129%)
- Floor Area 536 vs 320 sq ft (+68%)
Frequently asked questions
How big is the Levoit 6.2L humidifier?
It measures 8.8 x 8.8 x 14.1 inches and weighs 4.9 pounds. The listing does not name a nightstand fit.
Does the Levoit humidifier need distilled water?
The description recommends purified or distilled water to avoid white dust or possible hums.
Which Levoit humidifier parts are dishwasher safe?
The cover and detachable sink are dishwasher safe. The water tank and silencer cover are hand wash only.
How do I use essential oils in the Levoit humidifier?
Add 3 to 5 drops to the aroma chamber. Do not put oils directly into the water tank.