Winix A230 True HEPA Air Purifier
- 4-stage system with True HEPA and activated carbon
- 230 square feet rated floor area
- 27 dB noise level, sleep mode
- 99.97% of particles as small as 0.3 microns
- Smart Sensor air quality display, auto mode
- 9.5 x 9.5 x 14.6 inches, 6.7 pounds
- 2 year manufacturer warranty
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact bedroom air purifier with True HEPA, carbon and an air quality sensor that adjusts fan speed in auto mode. Two coverage figures appear in the listing.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B08HW4HX66Model: A230Category: HEPA Air Purifiers
Colors Available
Need a different one? Pick on Amazon →
Overview
Winix built the A230 as a small tower with a four stage purification system and a built-in sensor that reads air quality. In auto mode the fan speed adjusts itself, and sleep mode runs quietly.
A small footprint and a quiet low setting suit a bedroom, and the sensor display shows what the air is doing. The title quotes a room size per hour while the specs list a floor area, so the smaller figure is the safe guide.
Who it's for
Bedrooms and home offices with pets, dust or smoke are the setting. Large living spaces, or buyers who want strong claims about the plasma feature, should read the wording closely.
Pros and cons
- True HEPA and carbon filtration
- Air quality sensor with display
- Auto and sleep modes
- Quiet low setting
- Coverage figures differ
- Filter life not listed
- Plasma benefit is worded cautiously
Performance notes
Air runs through a four stage system that includes carbon and the True HEPA filter, with PlasmaWave listed as an extra. The sensor reads the air and the unit raises or lowers the fan to match. Higher speeds clean faster and make more noise, while sleep mode trades speed for quiet.
Specifications
| Brand | Winix |
|---|---|
| Model | A230 |
| Dimensions & fit | |
| Particle Retention Size | 99.97% at 0.3 microns |
| Item Dimensions D x W x H | 9.5 x 9.5 x 14.6 inches (D x W x H) |
| Item weight | 6.7 pounds |
| Capacity & performance | |
| Noise Level | 27 dBlower than 57% of 48 hepa air purifiers |
| Construction & materials | |
| Color | Charcoal Gray |
| Included components | |
| Included Components | True HEPA filter |
| Warranty & support | |
| Warranty Description | 2 year manufacturer |
| Other details | |
| Floor Area | 230 square feet (title cites 1110 sq ft per hour) |
| Filter Class | True HEPA, activated carbon, 4-stage |
| Control Type | Touch / button |
| Special Features | Smart Sensor, auto mode, sleep mode, PlasmaWave |
Closest rivals on specs
Frequently asked questions
How do I maintain the Winix A230 filters?
The listing gives no replacement schedule or cleaning steps. It lists a True HEPA filter in the included components and a four stage system.
Does the Winix A230 adjust itself?
Yes. In auto mode the unit adjusts fan speeds based on the Smart Sensor reading.
Is there a quiet mode?
Yes. The description mentions a sleep mode for quiet, energy-efficient operation.
What does PlasmaWave do?
The description says it may help reduce airborne pollutants, allergens and impurities. It does not make a firm claim.