Levoit OasisMist Smart Warm and Cool Mist Humidifier, 4.5 L

The Levoit OasisMist Smart humidifier offers warm and cool mist, a 4.5-liter tank, and app-based humidity controls. Its top-fill design and scheduling suit buyers who want smart operation, while the reported ease of cleaning is mixed.

At a glance

Choose between warm and cool mist and set a target humidity through the VeSync app or Auto Mode.
The maker lists coverage up to 430 square feet and a 45-hour runtime.
Top filling and a wide opening are intended to simplify refilling and cleaning.
App features include humidity monitoring, schedules, timers, and mist-output adjustment.

Price

$75.97Save 16%

Reference price: ~~$89.99~~

Price checked: Nov 14, 2026

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Often bought together

10 Pack Humidifier Filters, 10 Pack Absorption Pads and 10 Pack Aroma Pads | Humidifier Filter Replacement Accessory Kit Compatible with LEVOIT LV600S OasisMist450S Humidifier

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Levoit LV600S Smart Warm&Cool Mist Humidifiers for Home Bedroom Large Room | 6L 753ft² Coverage, Quickly & Evenly Humidify Whole House, Easy Top Fill, Smart Sensor, App & Voice Control, Quiet Sleep Mode

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Pros and cons

Pros

Warm and cool mist settings provide options for different preferences and seasons.
Top filling avoids turning over the tank, and the wide opening provides access for cleaning.
App scheduling and target-humidity settings support more hands-off operation.
The listing includes an aroma pad and a water filter sponge.

Cons

Cleaning experiences are mixed in customer feedback, so the wide opening does not guarantee that every cleaning task will be easy.

Technical specifications

22 specifications

Identity
Brand	Levoit
Model	OasisMist Smart Cool and Warm Mist Humidifiers for Bedroom Large Room Home,

Humidification
Mist type and operation	Ultrasonic
Tank capacity	4.5 liters
Listed floor area	430 square_feet
Listed runtime	45 hours
Humidifier modes	Warm and cool mist
Auto humidity range	40 percent and 60 percent RH
Warm mist temperature	40℃ and 60℃
Noise level listed	26dB

Connectivity and controls
Control methods listed	Voice
App control	VeSync app

Power and battery
Power configuration	ETL Certified AC Power Adapter
Voltage	120 volts
Wattage	12 watts

Dimensions and installation
Dimensions (D × W × H)	10.8"D x 6"W x 11.97"H
Weight listed	5.3 pounds
Fill design	Top fill
Nozzles	Dual 360° Nozzles

Materials and protection
Material listed	BPA-Free Meterial, suitable for babies and adults
Filter type	Water Filter Sponge
Color	White

What to know before buying

Coverage and runtime are listing claims. Actual room performance and runtime may vary with settings and conditions. The listing describes app control and voice control, but names only Voice in the control-method field, so confirm the exact control compatibility if it matters.

What’s in the box

Included

1 × 4.5-liter smart warm and cool mist humidifier
Aroma pad
Cleaning brush
Water filter sponge

Who is it for?

A good fit for

Buyers seeking a smart humidifier with warm and cool mist options.
Bedrooms or other spaces where a top-fill tank and app scheduling are useful.
Users who want to set a target humidity and monitor humidity through an app.

Less suited to

Buyers who need a clearly established room-coverage figure above 430 square feet.
Shoppers who require consistently easy cleaning based on customer feedback.

Levoit OasisMist Smart Warm and Cool Mist Humidifier, 4.5 L · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 64,438 ratings

5 stars74%74%
4 stars12%12%
3 stars5%5%
2 stars3%3%
1 star6%6%

Customer feedback highlights quiet operation, ease of use and top filling, with some customers appreciating the size for smaller rooms. Cleaning experiences differ: some report it is easy, while others find it difficult. That mixed feedback matters for a 4.5-liter tank intended for regular use, so consider how often you expect to clean it. The listed 26dB noise level is a product claim, while quietness is also a reported customer strength.