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Levoit Core 300S vs Levoit Core 400S

Levoit’s bedroom purifier vs its larger sibling.

By PickedHouse EditorsUpdated Specs checked October 2026

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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 We have not tested these products hands-on, and we do not publish invented test results, scores or star ratings.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 Core 300S and Core 400S are both app-connected Levoit purifiers with a combined filter. 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 Core 300S for bedrooms and offices up to 219 ft². Choose the Core 400S for rooms up to 358 ft² and a laser PM2.5 sensor for auto mode.

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Levoit Core 300S vs Levoit Core 400S: specs side by side

Manufacturer-published specifications, checked October 2026. *Levoit’s manual lists 39W and 7.48 lb for the Core 300S.
SpecLevoit Core 300SLevoit Core 400S
CADR141 CFM231 CFM
Rated room size (4.8 ACH)219 ft²358 ft²
Sensor / auto modeSee LevoitLaser PM2.5 sensor; auto mode
Lowest noise22 dB22 dB
Rated power23W*38W
Dimensions8.7 × 8.7 × 14.2 in10.8 × 10.8 × 20.5 in
Weight5.95 lb*11 lb

Pros and cons

Levoit Core 300S: pros

  • Small
  • Low power

Levoit Core 300S: cons

  • Smaller room rating

Levoit Core 400S: pros

  • Bigger room rating
  • PM2.5 sensor

Levoit Core 400S: cons

  • Bigger and heavier

Who should buy which

Room size decides it.

Choose the Levoit Core 300S if…

  • Your room is under about 220 ft²
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Choose the Levoit Core 400S if…

  • Your room is up to about 360 ft²
  • You want auto mode
Check price on Amazon (opens in a new tab)

How we compared

We compared manufacturer-published specifications. See how we research.

Frequently asked questions

Do they use the same app?

Yes, both use Levoit’s VeSync app.

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.

  1. Levoit: Core 300S-P Smart Air Purifier product page
  2. Levoit: Core 300S series user manual (PDF)
  3. Levoit: Core 400S-P Smart Air Purifier product page
  4. Levoit: Core 400S user manual (PDF)
  5. Levoit: air purifier comparison chart (PDF)
ReviewAir Purifiers

Levoit Core 300S review

A small, app-connected purifier for bedrooms, offices and dorms.

Read the comparison ReviewAir Purifiers

Levoit Core 400S review

A quiet, app-connected tower purifier for medium rooms, with one caveat about its CADR figures.

Read the comparison Head to headAir Purifiers

Levoit vs Winix air purifier: Core 400S vs Winix 5500-2

Both are rated for a roughly 360 ft² room at 4.8 air changes an hour. One is an app-connected tower, the other a button-driven box with a washable carbon filter.

Read the comparison