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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 1,518 reviews
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Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 24
Order within 20 hours and 48 minutes
Available payment plans shown during checkout

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
  • Smart Sensors + Auto Mode: Built-in air quality sensor measures and adjusts fan speed in real-time
  • Ultra-Quiet: Nearly silent on slowest speed
  • Light Automated Sleep Mode:Unit automatically activates its quiet, energy-efficient Sleep Mode when room is darkened and returns to Auto Mode in the presence of light
  • Filter Replacement Indicator: When the filters need to be replaced, the Filter Replacement Indicator LED will illuminate

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


Floor Area: 230 Square Feet


Specification Met: AHAM Certified, Energy Star Certified, ETL Certified, CARB Certified


Color: White/Charcoal Gray


Brand: Winix


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


Floor Area: 230 Square Feet


Specification Met: AHAM Certified, Energy Star Certified, ETL Certified, CARB Certified


Noise Level: 20 dB


Particle Retention Size: 0.03 Micron


Controller Type: Touch Control


Manufacturer: Winix


Item Weight: 7.1 pounds


Country of Origin: Korea, Republic of


Item model number: A231


Care instructions: Hand Wash


Assembly required: No


Number of pieces: 1


Warranty Description: 2 year manufacturer


Batteries required: No


Included Components: True HEPA Filter


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great product!
Style: HEPA Air Purifiers Color: Charcoal Gray
We’ve had this product nearly 2 years now with great results! Easy to use and change out the filters. Would highly recommend! The difference in air quality is noticeable, and the noise level is so low it’s not noticeable at the normal level. On high it’s a bit louder but it’s not often needed unless we’re doing a heavy cleaning. ... show more
Reviewed in the United States on October 20, 2024 by snoringDad
    • Nice air filter for litter box odors
Style: HEPA Air Purifier Color: White/Charcoal Gray
We've only had this for one week but it is working great. We were looking for an air filter to keep our small (90 sq/ft) home office, where we keep the two litter boxes, fresh and odor free. We tried another brand, smaller, and that did nothing. The Winix, so far, after week, is doing a great job. It's quiet, but so far on auto mode, its never gone above fan speed *1*. Will update if any issues. ... show more
Reviewed in the United States on October 15, 2024 by Hawke
    • Quiet, sleek and efficient!
Style: HEPA Air Purifiers Color: Charcoal Gray
Super great product, and a good value for the money imo. We have 2, one in the master bedroom and another in the living room. There are three manual modes, and admittedly each one is pretty noisy; I never use these modes. Auto mode is always quiet, and will only pick up when it detects something in the air. I was skeptical of this at first, thinking it would just activate randomly. I noticed however is if I was cooking and there was any smoke, or cleaning with more potent chemicals the air purifier would kick on. We did some painting and sure enough, both our air purifiers kicked on for awhile and eventually slowed back down. Night mode will shut off all lights on the device, and will stay in the quietest mode all night, regardless of air quality. We use this on our bedroom purifier and turn it back to auto in the morning. I don’t have any air quality meters, and I haven’t run any scientific tests on these, but they have been a nice peace of mind for us. I have cleaned the filters as well and they are obviously picking some stuff up! Fortunately they clean super easily and buying new filters seems pretty accessible (several stores sell them, and on Amazon). Definitely recommend ... show more
Reviewed in the United States on February 12, 2022 by Preston
    • 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
    • Nice budget air purifier
Style: HEPA Air Purifier Color: White/Charcoal Gray
I bought this air purifier as I have a mid-size bedroom (~120 feet; large enough that many smaller purifiers were not rated for that room size). I was also looking for an air purifier with HEPA filtration for allergies and filter changes that were reasonably priced. The official replacement filters run from about $45-50 depending on where you get them and last around a year (aftermarket filters are available and can be had for significantly cheaper, if you're willing to take your chances on those). Many other smaller air purifiers have filters that last for much shorter lengths of time and/or secondary pre-filters and end up costing more per year to run, so in the long term this filter will save you a little money there. Filter changes and cleanings are easy (you should vacuum or otherwise clean the filter every 2 months to extend its longevity), but the directions were a little unclear about how to orient the filter. Based on what I've found, the solid black side of the filter labeled BOTTOM should face the bottom cover of the machine. Noise levels with the filter are reasonable. The lowest speed on automatic is quite quiet and serves as nice background noise. Medium speed is louder but tolerable. High speed is loud, but it's never kicked on automatically for me. Note that this comes with PlasmaWave, which generates some ozone as a byproduct (though from what I've read, this is well below harmful levels). PlasmaWave can be toggled off. However, by default, whenever you turn the purifier on or wake it from sleep mode, PlasmaWave turns on. I would NOT recommend this model if this is would annoy you, but it's a non-issue for me. ... show more
Reviewed in the United States on November 10, 2023 by Glenn

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