HUMIDIFIERS·LEVOIT
Levoit Classic 300S Smart Humidifier
Levoit · A VeSync brand
4.5 · 42,000 shopper ratings
Editor score8.6/10
Best for: Dry-winter bedrooms, smart-home control
Lowest price we found
$79.99
At Amazon (as of – Details)
Buy at Amazon · $79.99 ↗Review updated 2026-07-04
Tank
6 L
Runtime
Up to 50 hr
Mist
Warm + cool
The smart-bedroom benchmark — app + Alexa control, a 6L tank for 50-hour runs, and warm-or-cool mist that ends dry-winter nights.
Worth it$79.99 for a top-fill tank you will actually refill. Bottom-fill humidifiers get abandoned by February.Levoit is the humidifier brand sleep reviewers reach for, and the Classic 300S is why: a 6-liter tank that runs up to 50 hours, both warm AND cool mist, quiet sub-30dB sleep mode, and full app/Alexa control with humidity targeting. It solves the winter-heating dryness that wrecks sinuses and throats overnight. It needs regular cleaning (all humidifiers do) and the smart features assume Wi-Fi you may not want in the bedroom.
Price & where to buy
Prices checked 2026-10-11Walmart
Walmart
Availability + price vary by store
Price varies
Not price-checked
Target
Target
Availability + price vary by store
Price varies
Not price-checked
Prices shown were last checked on 2026-10-11 and can change at any time — the price on the retailer's site at checkout is the one that applies. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the price at our recommended retailer as at our last check of that offer (2026-10-11) and the manufacturer's list price for comparison. Amazon prices come from Amazon's own product data service and are refreshed twice a day; each one shows the date and time Amazon gave it, and one older than 24 hours is replaced by “Check price”. Other retailers' prices are checked by hand and show the date of that check. Retail prices move constantly, so the price on the retailer's own page at checkout is the one that applies. More on Amazon prices
Should you buy it?
What we like
- Warm AND cool mist
- 6L tank, up to 50-hour runs
- Quiet <30dB sleep mode
- App + Alexa humidity targeting
What to know before buying
- Needs regular cleaning (all do)
- Smart features want Wi-Fi
- Larger footprint
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At a glance
Tank6 L
RuntimeUp to 50 hr
MistWarm + cool
Noise<30 dB sleep mode
SmartApp + Alexa, humidity target
AutoShuts off when empty
CoverageLarge bedroom
RefillTop-fill
Best forSmart all-night humidity
How it scores
How our 8.6/10 breaks down — rated on the dimensions that matter most for humidifiers, from published specifications and third-party test data, not the marketing.
Humidity output
9/10
Tank & runtime
9/10
Quiet operation
9/10
Ease of cleaning
7.5/10
Value
8/10
Compare with alternatives
Quick verdicts for the humidifiers most often considered alongside the Levoit Classic 300S Smart Humidifier.
VS·HEAD-TO-HEAD
Levoit Classic 300S Smart Humidifier vs Pure Enrichment MistAire Ultrasonic Humidifier
The reliable value classic — a quiet 1.5L cool-mist humidifier with a night light, the no-app bedroom staple with a 5-year warranty.
→ Simple no-app bedroom humidity, warranty peace
VS·HEAD-TO-HEAD
Levoit Classic 300S Smart Humidifier vs Everlasting Comfort 6L Cool Mist Humidifier
The big-tank value — 6 liters for 50-hour runs with an essential-oil tray, humidifier and diffuser in one budget box.
→ Big rooms, humidity + aroma in one, value
VS·HEAD-TO-HEAD
Levoit Classic 300S Smart Humidifier vs Honeywell Cool Moisture Humidifier
The evaporative workhorse — a wicking-filter humidifier that self-regulates humidity and can't over-mist, the low-maintenance-air pick.
→ Sinus sufferers, hard-water homes, no white dust
Decision support · what no other comparison site has
Take the quiz · 60 secNot sure which one is right for you?
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Frequently asked questions
Does a humidifier help sleep?
In dry air (winter heating, arid climates) yes — it eases the dry throat, stuffy nose and cracked-sinus waking that fragment sleep. 40-50% humidity is the target; the 300S holds it automatically.
Warm vs cool mist?
Cool is safer around kids and pets; warm can feel cozier and slightly reduces bacteria. The 300S does both — a real flexibility edge.
How much cleaning?
Rinse every few days, deep-clean weekly with vinegar — non-negotiable for ANY humidifier to avoid mold/mineral spray. The top-fill tank makes it easier.
Wi-Fi required?
Only for smart features; it runs fully as a manual humidifier without connecting.
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