Levoit Top Fill Humidifier 2.5L
- Floor Area: 219 sq ft
- Capacity: 0.7 gallons
- Runtime: 25 hours
- Operation Mode: Ultrasonic
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A straightforward, easy-to-refill bedroom humidifier from a familiar line, best for single rooms rather than large or open spaces.
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ASIN: B0C2C9NHZWModel: LUH-A251-WUSCategory: Humidifiers
Overview
Levoit's Classic 160 is a 2.5-liter top-fill cool mist humidifier for bedrooms, rated for up to 25 hours of runtime on its low setting and 25 db of noise.
Levoit redesigned this line's fill method after customer feedback, moving from a flip-and-fill tank to a top-fill lid that removes without inverting the tank. A single knob sets mist output and a 360-degree nozzle points it where needed, with a red indicator light warning when it's time to refill.
- 2.5L top-fill tank, up to 25 hrs runtime
- 25 db quiet operation
- 360-degree adjustable nozzle
- Auto shut-off with low-water indicator
Who it's for
Suits a bedroom or nursery buyer who wants a simple, quiet, easy-to-clean humidifier without app features or a large multi-day tank. Not built for anyone wanting automatic humidity targeting or whole-house coverage.
Pros and cons
- Top-fill lid avoids flipping a full tank
- 25 db noise rating with lights off for sleep
- Wide tank opening simplifies cleaning
- 360-degree nozzle for directing mist
- 2.5L tank needs refilling more often than gallon-class models
- Manual knob only, no app or digital display
- Single mist output path, no warm mist option
Performance notes
The 2.5-liter tank is rated for up to 25 hours on low, and the top-fill lid is meant to avoid the spilling that comes with flipping a full tank over to refill through the base. Auto shut-off stops the unit when the tank empties or is lifted off the base, with a red indicator signaling low water before it runs dry.
Specifications
| Brand | Levoit |
|---|---|
| Model | LUH-A251-WUS |
| Dimensions & fit | |
| Item Weight | 2.2 pounds |
| Item Dimensions D X W X H | 6.4 × 7.1 × 10.1 inches |
| Capacity & performance | |
| Capacity | 0.7 gallons |
| Power & efficiency | |
| Wattage | 17 watts |
| Voltage | 120 volts |
| Power Source | Corded Electric |
| Construction & materials | |
| Material | BPA Free Material |
| Color | White |
| Included components | |
| Number Of Packs | 1 |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Floor Area | 219 sq ft |
| Runtime | 25 hours |
| Operation Mode | Ultrasonic |
| Filter Type | Pre Filter |
| Control Type | Touch |
| Item Shape | Round |
| Room Type | Bedroom, Kids Room, Nursery, Office |
| Part Number | LUH-A251-WCA |
| Manufacture Year | 2023 |
Frequently asked questions
How long does the Levoit Classic 160 run per fill?
Up to 25 hours on the low setting, per Levoit's rating for the 2.5-liter tank.
Is it a top-fill or bottom-fill design?
Top-fill; the lid lifts off so the tank doesn't need to be turned over to add water.
How quiet is it at night?
Levoit rates it as low as 25 db with all indicator lights off.