Search  for anything...
Winix

WINIX A231 Air Purifier for Bedroom Up to 1110 Ft² in 1 Hr With Air Quality Monitor, True HEPA, Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke, Dust

  • Based on 2,114 reviews
Condition: New
Checking for the best price...
$119.98 Why this price?
Save $110.01 was $229.99

Buy Now, Pay Later

As low as $20.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Factory Hardware Store
Arrives Jul 19 – Jul 20
Order within 9 hours and 54 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: HEPA Air Purifier


Color: White/Charcoal Gray


Features

  • AHAM Verifide at 230 sq ft: Also cleans rooms up to 1,110 sq ft in 1 hour (555 sq ft in 30 minutes, 370 sq ft in 20 minutes, 278 sq ft in 15 minutes)
  • Winix True HEPA: Captures 99.97%* of airborne allergens including pollen, dust, smoke, and pet dander, as small as 0.03 microns
  • Fine Mesh Pre-Filter: The first line of defense against the largest airborne particles found indoors
  • Carbon Filter: Reduces VOCs and household odors from cooking, pets, and smoke. It is designed to catch airborne particles found indoors, which also helps prolong the True HEPA Filter life
  • PlasmaWave Air Cleaning Technology

Description

A231: Featuring a 360° all-in-one 4-stage air purification system, this unit removes 99.97% of airborne particles as small as 0.3 microns in size. Winix’s PlasmaWave Technology may help to reduce the presence of airborne pollutants, allergens, and impurities. The unit’s built-in Smart Sensor detect and monitor the quality of air in your environment and provides a visual representation of your current air quality. When in Auto Mode, the unit automatically adjusts fan speeds to ensure efficient and cost-effective cleaning. Activate Sleep mode for quiet, energy-efficient operation.

Color: White/Charcoal Gray


Brand: Winix


Product Dimensions: 9.5"D x 9.5"W x 14.6"H


Power Source: Corded Electric


Item Weight: 7.1 Pounds


Power Source: Corded Electric


Control Method: Touch


Filter Type: HEPA


Floor Area: 230 Square Feet


Noise Level: 20 Decibels


Particle Retention Size: 0.03 Micron


Controller Type: Touch Control


Contaminant Filtration Capability: True


Special Features: Manual


Smart Home Compatibility: Not Smart Home Compatible


Filter Class: True HEPA, Carbon Filter, PlasmaWave Technology


Item Dimensions D x W x H: 9.5"D x 9.5"W x 14.6"H


Item Weight: 7.1 Pounds


Color: White/Charcoal Gray


Brand Name: Winix


Model Number: A231


Manufacturer: Winix


Warranty Description: 2 year manufacturer


Part Number: A231


Included Components: True HEPA Filter


Item Type Name: Air Purifier


Unit Count: 1.0 Count


Specification Met: AHAM Certified, CARB Certified, ETL Certified


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 19 – Jul 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Terrific purifier
Style: HEPA Air Purifier Color: White/Charcoal Gray
We’ve had this on a dresser in our room for about 3 or 4 years now, running continuously. For most of the time, I’ve had it on the “automatic” setting, which means it generally runs at medium speed, turning up to faster when it senses particulates in the air, then returning to medium. It works VERY well, and has reduced my allergies a great deal. The noise level is quite comfortable for us, but we don’t mind a soft fan sound. There are three manually set regular speeds, low, medium and high. The low speed is quite quiet but still a little louder than the night mode speed. If I switch it to night mode, it falls to whisper quiet, hardly noticeable. We use a genuine Winix filter in it, and replace it about every 9 months or so. Replacement is super easy. It has no weird sounds like another reviewer has mentioned, but runs smoothly and efficiently. We’re completely satisfied and would buy this same one again for certain. ... show more
Reviewed in the United States on March 24, 2025 by S. Emigh
    • Great compact air purifier for small spaces
Style: HEPA Air Purifier Color: White/Charcoal Gray
This compact Winix air purifier works really well and makes a noticeable difference in air quality. It’s small but powerful, and it runs quietly even on higher settings. I like how quickly it helps reduce dust and odors in the room. It’s also easy to use and maintain. Overall, a great choice for keeping the air clean in smaller spaces. ... show more
Reviewed in the United States on June 25, 2026 by franklin
    • Quite working 11 months after purchessed
Style: HEPA Air Purifiers Color: Charcoal Gray
The air purifier WINIX A230 Air Purifier for Bedroom Up... came last June .. 2025. It met my needs. Cleaned air nicely.. was a great unit for my needs. I have seasonal allergies. ⚠️ however it has quite.. fan made a loud noise and motor quit. I M presently in contact with company. 🥺 The company is replacing this air purifier. Overall customer service and unit are worthy of 5 stars⭐️ ... show more
Reviewed in the United States on May 10, 2026 by Sharon
    • Very quiet
Style: HEPA Air Purifier Color: White/Charcoal Gray
I like that this has a sleep mode, whereas it is extremely quiet (my fish tank motor is louder) and only the light from the power button is present, which doesn't seem to light up the room but may bother someone who prefers pitch black to sleep. Also, the air smells more crisp and my daughter, who has allergies, has been having far less attacks. It is also light weigh, the filters last forever, it's easy to clean, and you can turn off plasma wave (which I never use because it can be problematic for asthmatics). My only complaint is that I'm not sure how well the air quality sensor works. I've set my son's poopy diaper right next to it and it still said the air quality was good. It also said the air quality was good when I could smell a strong smoke smell from my neighbors burning. However, any time someone is cutting onions in the kitchen, a room away from where the purifier is, it says the air quality is poor to very bad. Other times it randomly says the air quality is poor/bad for no reason discernible to me, and without there being any activities that may have effected the air quality. All in all it does its job and does so very quietly, which is what was most important to me due to having sensory processing issues, especially related to sound. Edit: air quality sensor seems to be working. It's picking up b/o and flatulence. Also, my son has knocked it off the shelf several times and it seems pretty sturdy. The coating on the wire is coming off near the machine. Also, I kept noticing a faint helicopter noise coming from the machine where it does atop a book shelf (not recommended distance from the wall). I was worried it was the fan and quite irritated by the sound. I realized that what was causing it was the slight movement from the fan leading to the wire moving back and forth against the wall where it was pushed between the wall and the shelf. I pulled up more slack and moved the unit out from the wall as much as I could and the sound stopped. Only real complaint : I wish that plasma mode had a lock on it. My kids keep turning it on, which is an issue for the asthma and allergy havers in this house. ... show more
Reviewed in the United States on June 27, 2021 by DeadpanAnn
    • Quiet, works well
Style: HEPA Air Purifier Color: White/Charcoal Gray
I bought this one and another brand at the same time, the coway airmega, and this one performs just as well in my opinion. It exchanges air very quickly, which I can tell due to using it while I cook etc. It helps well with smells and it’s pretty quiet. The plasma setting is a little noisy, but I only run that during the day. Overall a good purchase ... show more
Reviewed in the United States on May 22, 2026 by Brandon Robinson
    • One of THE Best Brand Air Purifiers On the Market
Style: HEPA Air Purifier Color: White/Charcoal Gray
Very good quality, especially for the sale price. It's just the right size for my bathroom and definitely removes dust and odors efficiently making it extremely functional for my application. I bought this to be my second WInix Air Purifier because the first one resides in my bedroom, has been excellent, was a great price and has been super reliable. It's also almost silent and works GREAT! Get this brand with confidence fme. ... show more
Reviewed in the United States on November 13, 2025 by ViolinArc
    • Nice quality, great brand, looks nice, and good value!
Style: HEPA Air Purifiers Color: Charcoal Gray
Review Image by Kyle
Review Image by Kyle
I bought this to have in my bedroom to supplement my other air purifier in my living room which is the Winix C545. That one has been great for 3 years of constant use now with zero problems so I thought I’d stick with Winix for my second purifier. I like the look and size of this new one, perfect for a bedroom. Others weren’t lying about how loud it can be (when compared to the C545, it is quite a bit louder, but think about it- it’s a smaller purifier doing the work of a larger purifier). I keep it on low and it’s fine. High setting is definitely loud, but would be great for people who like to sleep with white noise. It’s not loud enough for me to deduct stars from my review. The air indicator ring light is really nice looking and it does change colors based on air quality quickly (candle smoke, fragrance spray, etc, will all make the air quality light change colors and prompt the fan speed to increase if on auto. It works!) I mostly got this one to help with dog smell and so far I can tell a difference with noticeably fresher smelling air when I come home. ... show more
Reviewed in the United States on May 27, 2025 by Kyle
    • Very Practical & Works Great
Style: HEPA Air Purifier Color: White/Charcoal Gray
Review Image by YASSER NATANAEL RODRIGUEZ
Amazing a cleaning up the air and providing clean air for everyone. It also has automatic mode which is a nice touch.
Reviewed in the United States on July 7, 2026 by YASSER NATANAEL RODRIGUEZ

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...