Winix A231 review
A compact, no-app purifier rated for slightly bigger rooms than its Levoit rival.
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The Winix A231 is a small four-speed tower with a True HEPA filter and an optional PlasmaWave ionizer. 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 or dorm up to about 250 ft² where you don’t want an app, the A231 is a simple choice. If you want app schedules and a lower power draw, the Levoit Core 300S is the alternative.
Winix A231 key specs
| Spec | Winix A231 |
|---|---|
| CADR | 149 dust / 154 pollen / 147 smoke CFM |
| Rated room size (4.8 ACH) | 246 ft² |
| Ionizer | PlasmaWave, can be switched off |
| Fan speeds | 4 |
| Lowest noise | 25 dB |
| Rated power | 55W |
| Smart features | No Wi-Fi |
| Dimensions | 9.5 × 9.5 × 14.6 in |
| Weight | 6.75 lb |
Pros and cons
Pros
- Higher room rating than the Core 300S (246 ft²)
- No app needed
- Ionizer can be switched off
Cons
- 55W rated power
- Slightly louder low setting (25 dB)
- No Wi-Fi
Who it suits (and who it doesn't)
Good fit
- Bedrooms and dorms up to about 250 ft²
- People who don’t want an app
- Campus networks that block smart devices
Look elsewhere if
- Living rooms
- People who want zero ion output and may forget to switch it off
- Anyone who wants schedules
What to know before you buy
- PlasmaWave: Winix’s ionizer can be switched off if you prefer none.
- Housing rules: some campuses restrict ionizers.
Frequently asked questions
What size room is the Winix A231 for?
246 ft² at 4.8 air changes per hour.
Does it have Wi-Fi?
No.
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
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