Levoit Core 300S review
A small, app-connected purifier for bedrooms, offices and dorms.
Affiliate disclosure: PickedHouse is reader-supported. Some links on this page are affiliate links (including Amazon links), and we may earn a commission if you buy through them, at no extra cost to you. As an Amazon Associate, PickedHouse earns from qualifying purchases. Commissions never decide which products we include or how we rank them. How we make money.
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 We have not tested these products hands-on, and we do not publish invented test results, scores or star ratings.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 is the smaller sibling of the Core 400S: a compact cylinder with an H13 True HEPA filter and Wi-Fi control. This page is based on manufacturer-published specifications and manuals plus aggregated owner reviews; we did not test the products ourselves.
Our verdict
For a bedroom, home office or dorm up to about 220 ft², the Core 300S is compact and quiet on paper. For larger rooms, step up to the Core 400S.
Levoit Core 300S key specs
| Spec | Levoit Core 300S |
|---|---|
| CADR | 141 CFM |
| Rated room size (4.8 ACH) | 219 ft² |
| Filtration | Pre-filter, H13 True HEPA, carbon |
| Lowest noise | 22 dB |
| Rated power | 23W* |
| Smart features | Wi-Fi app control and schedules |
| Dimensions | 8.7 × 8.7 × 14.2 in |
| Weight | 5.95 lb* |
Pros and cons
Pros
- Small 8.7 in footprint
- 22 dB low setting
- App control and schedules
- Pet Allergy and Toxin Absorber filter options
Cons
- Levoit’s manual lists different power and weight figures
- Smaller room rating than the Winix A231
- Smart features need the app
Who it suits (and who it doesn't)
Good fit
- Bedrooms and offices up to about 220 ft²
- Dorm rooms
- People who want app schedules
Look elsewhere if
- Living rooms
- People on networks that block smart devices
- Anyone who wants a washable carbon filter
What to know before you buy
- Spec conflict: Levoit’s product page lists 23W and 5.95 lb; the manual lists 39W and 7.48 lb.
- Filters: Levoit sells standard, Pet Allergy and Toxin Absorber versions.
Frequently asked questions
What size room is the Core 300S for?
219 ft² at 4.8 air changes per hour.
Does it have an app?
Yes, via Wi-Fi and the 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.
Keep reading
Levoit Core 300S vs Winix A231
Two small-room purifiers: one with an app, one with an ionizer and slightly more output.
Read the comparison Best ofAir PurifiersBest air purifier for a dorm room
A typical dorm room is small, shared and short on floor space. You want a compact purifier sized for about 150–250 ft² that’s quiet enough to sleep next to.
Read the comparison ReviewAir PurifiersLevoit 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 PurifiersLevoit Core 300S vs Levoit Core 400S
Levoit’s bedroom purifier vs its larger sibling.
Read the comparison