Levoit LV600HH vs Levoit OasisMist 450S
Two Levoit warm-and-cool humidifiers in different sizes.
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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 We have not tested these products hands-on, and we do not publish invented test results, scores or star ratings.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 OasisMist 450S both offer warm and cool mist at 280W in warm mode. 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 a 6 L tank and a larger 430–753 ft² rating. Choose the OasisMist 450S for medium rooms and higher warm output (550 vs 500 mL/h).
Check Levoit LV600HH price (opens in a new tab)Check Levoit OasisMist 450S price (opens in a new tab)
Levoit LV600HH vs Levoit OasisMist 450S: specs side by side
| Spec | Levoit LV600HH | Levoit OasisMist 450S |
|---|---|---|
| Tank | 6 L | 4.5 L |
| Max output | 300 mL/h cool / 500 mL/h warm | 300 mL/h cool / 550 mL/h warm |
| Rated room | 430–753 ft² | 215–430 ft² |
| Max run time | Up to 36 h* | Up to 45 h (low) |
| Rated power | 280W | 280W (warm) |
| Controls | Panel plus remote | See Levoit |
| Dimensions | 11.3 × 7.0 × 10.5 in | See Levoit |
| Weight | 6.5 lb | See Levoit |
Pros and cons
Levoit LV600HH: pros
- Bigger tank
- Larger room rating
- Remote
Levoit LV600HH: cons
- Run time figures vary
Levoit OasisMist 450S: pros
- Higher warm output
- Longer low run time
Levoit OasisMist 450S: cons
- Smaller tank
Who should buy which
Room size decides it.
Choose the Levoit LV600HH if…
- Your room is over 430 ft²
- You want a remote
Choose the Levoit OasisMist 450S if…
- Your room is 215–430 ft²
- You want longer low run time
How we compared
We compared manufacturer-published specifications. See how we research.
Frequently asked questions
Do both do warm mist?
Yes.
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.