Levoit LV600HH vs Levoit Classic 300S
Levoit’s warm-and-cool hybrid vs its smart cool-mist model.
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How this page was made: our picks are based on manufacturer specifications (product pages, manuals and spec sheets, all linked below) and aggregated owner reviews. We have not tested these products hands-on, and we do not publish invented test results, scores or star ratings. Read our methodology.
The Levoit LV600HH and Classic 300S both have 6 L tanks and auto humidity modes. This page is based on manufacturer-published specifications and manuals plus aggregated owner reviews; we did not test the products ourselves.
Short answer
Choose the LV600HH for warm mist and rooms up to 753 ft². Choose the Classic 300S for app control, low power and up to 60 h run time.
Check Levoit LV600HH price (opens in a new tab)Check Levoit Classic 300S price (opens in a new tab)
Levoit LV600HH vs Levoit Classic 300S: specs side by side
| Spec | Levoit LV600HH | Levoit Classic 300S |
|---|---|---|
| Mist | Warm and cool | Cool |
| Tank | 6 L | 6 L |
| Max output | 300 cool / 500 warm mL/h | 300 mL/h |
| Rated room | 430–753 ft² | 215–505 ft² |
| Run time | Up to 36 h* | Up to 60 h (low) |
| Controls | Panel plus remote | App, Alexa, Google |
| Rated power | 280W | 26W |
| Weight | 6.5 lb | 4.3 lb |
| Warranty | 2-year limited | 2-year limited |
Pros and cons
Levoit LV600HH: pros
- Warm mist
- Large rooms
- Remote
Levoit LV600HH: cons
- 280W
- Run-time figures vary
Levoit Classic 300S: pros
- 26W
- App and voice
- 60 h
Levoit Classic 300S: cons
- Cool only
- Smaller room rating
Who should buy which
Warm mist and room size vs efficiency and app control.
Choose the Levoit LV600HH if…
- You want warm mist
- Room over 500 ft²
Choose the Levoit Classic 300S if…
- You want an app
- Power use matters
How we compared
We compared manufacturer-published specifications. See how we research.
Frequently asked questions
Which uses less power?
The Classic 300S, at 26W.
Did you test it?
No. This page uses manufacturer specifications and aggregated owner reviews. See how we research.
Sources
Specifications were checked against the manufacturer pages, manuals and spec sheets below in October 2026. Makers revise specs and sell regional variants, so confirm the exact model number before you buy. We do not list prices because they change daily; use the retailer link to see the current price.
Keep reading
Levoit LV600HH review
A hybrid warm-and-cool-mist humidifier rated for big rooms, with a remote and an auto mode.
Read the comparison ReviewHumidifiersLevoit Classic 300S review
A 6 L top-fill cool-mist humidifier with app control and an auto mode that holds a humidity target.
Read the comparison Head to headHumidifiersLevoit LV600HH vs Levoit OasisMist 450S
Two Levoit warm-and-cool humidifiers in different sizes.
Read the comparison