Is the Levoit Classic 300S worth it?

At $79.99 at Best Buy as of November 3, 2026, it is a strong value for a large-tank smart humidifier. You get app control, a humidistat and a 60-hour low-setting runtime for well under $100.

How does it compare with the Classic 200S?

The 300S has a bigger 6 L tank and smart app and voice control, while the 200S is smaller and manual. Pick the 300S for larger rooms and scheduling; the 200S suits small rooms on a budget.

How long does the tank last?

Levoit rates it at up to 60 hours on the lowest setting. On high output in a dry room, expect closer to a day or less between refills.

What room size does it cover?

Levoit rates it for 215–505 sq ft, so it fits bedrooms, offices and medium living rooms. In larger open spaces it will struggle to raise humidity much.

Does it work with Alexa and Google Assistant?

Yes. It connects through the VeSync app and supports both Alexa and Google Assistant for voice control, plus schedules and auto mode in the app.

Ultrasonic humidifiers like this one tend to drop during fall and winter cold-and-flu season sales and around Black Friday. Its current $79.99 at Best Buy is already near its typical low.

Where is the Levoit Classic 300S cheapest?

At Best Buy, for $79.99, as of our latest check.

What do buyers say about the Levoit Classic 300S?

Rated 4.5 out of 5 from 426 ratings.

Where can I buy the Levoit Classic 300S?

8 stores we checked sell it, including Walmart, Best Buy, Home Depot, Wayfair, Amazon.

Levoit Classic 300S

4.5

Best price now

$79.99at Best BuyObserved at 8:22 PM

Compared across 5 stores. Prices are checked against each store and labelled with when.

Visit Best Buy

Levoit Classic 300S

4.5

Best price now

$79.99at Best BuyObserved at 8:22 PM

Compared across 5 stores. Prices are checked against each store and labelled with when.

Visit Best Buy

Ask our shopping agent

Our take on the Levoit Classic 300S

The Levoit Classic 300S is a 6 L ultrasonic cool-mist humidifier for rooms of roughly 215–505 sq ft. It stands out for smart control through the VeSync app plus Alexa and Google Assistant, an auto mode with a built-in humidistat, a 60-hour runtime on low, and a top-fill tank that is easy to refill and clean. It runs as quiet as 30 dB on its lowest setting. Its best new price is $79.99 at Best Buy as of November 3, 2026, near the low end of what this model has sold for.

Best forBedrooms and nurseries where low noise mattersSmart-home users who want app, Alexa or Google controlMedium rooms up to about 500 sq ftPeople who want a large tank and fewer refills

Pros

6 L tank runs up to 60 hours on low
Auto mode holds a target humidity via humidistat
App control plus Alexa and Google Assistant
Top-fill design makes refills and cleaning simple
Quiet at about 30 dB on low
Aromatherapy tray for essential oils

Cons

Ultrasonic mist can leave white dust with hard water
Cool mist only, no warm mist option
App setup and Wi-Fi pairing frustrate some owners
No replaceable filter, so mineral buildup needs regular cleaning

Levoit Classic 300S prices at every store

WalmartNew
In stock
$79.99Free shippingObserved at 8:22 PM
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Best BuyNew
In stock
$79.99Free shippingObserved at 8:22 PM
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Home DepotNew
In stock
$79.99Free shippingObserved at 8:22 PM
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WayfairNew
In stock
$79.99Free shippingObserved at 8:22 PM
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AmazonNew
Availability unknown
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$79.99Free shippingObserved at 8:22 PM
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Also available at

Levoit Classic 300S price history

Lowest price we've seen: $51.99 on Nov 4 at eBay. Tracked across 8 stores since Nov 4.

What reviewers say

Owners rate it 4.5 out of 5 across 426 ratings. Most praise the long runtime, quiet operation and app control; complaints center on white dust, cleaning effort and Wi-Fi setup.

Pros

Runs all night on one fill
Very quiet on low
Auto mode keeps humidity steady
Easy top-fill refills

Cons

White dust with tap water
Cleaning the tank and base takes effort
App and Wi-Fi pairing can be finicky

About the Levoit Classic 300S

With convenient smart features, aromatherapy, and ultrasonic technology, Levoit’s Ultrasonic Smart Humidifier delivers ideal humidity and soothing aromas for up to 60 hours. The VeSync app gives you full control of your humidifier from your smartphone. You can create customized schedules that suit your routine or let Auto Mode maintain a target humidity for as long as you need. With an effective range of 215–505 sq ft, the humidifier easily covers bedrooms, offices, and living rooms. The fine mist helps soothe unpleasant cold symptoms, while the convenient top-fill design supports quick refills and easy cleanup.

Specifications

Humidification Type: Ultrasonic
Coverage Area: 200-500 sq ft
Water Tank Capacity: 6 L
Volume: 1.58 gal
Automatic Shutoff: Yes
Timer: Yes
Functionality Type: Humidifier

Questions and answers

Is the Levoit Classic 300S worth it?: At $79.99 at Best Buy as of November 3, 2026, it is a strong value for a large-tank smart humidifier. You get app control, a humidistat and a 60-hour low-setting runtime for well under $100.
How does it compare with the Classic 200S?: The 300S has a bigger 6 L tank and smart app and voice control, while the 200S is smaller and manual. Pick the 300S for larger rooms and scheduling; the 200S suits small rooms on a budget.
How long does the tank last?: Levoit rates it at up to 60 hours on the lowest setting. On high output in a dry room, expect closer to a day or less between refills.
What room size does it cover?: Levoit rates it for 215–505 sq ft, so it fits bedrooms, offices and medium living rooms. In larger open spaces it will struggle to raise humidity much.
Does it work with Alexa and Google Assistant?: Yes. It connects through the VeSync app and supports both Alexa and Google Assistant for voice control, plus schedules and auto mode in the app.
When is it cheapest?: Ultrasonic humidifiers like this one tend to drop during fall and winter cold-and-flu season sales and around Black Friday. Its current $79.99 at Best Buy is already near its typical low.
Where is the Levoit Classic 300S cheapest?: At Best Buy, for $79.99, as of our latest check.
What do buyers say about the Levoit Classic 300S?: Rated 4.5 out of 5 from 426 ratings.
Where can I buy the Levoit Classic 300S?: 8 stores we checked sell it, including Walmart, Best Buy, Home Depot, Wayfair, Amazon.