Winix

WINIX A231 Air Purifier for Bedroom Up to 1110 Ft in 1 Hr With Air Quality Monitor True

1172+ bought in the past month

$26.28$98.99

About this item

  • 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
$26.28
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Product details

ColorWhite/Charcoal Gray
BrandWinix
Product Dimensions9.5"D x 9.5"W x 14.6"H
Power SourceCorded Electric
Item Weight7.1 Pounds

Technical specifications

colorWhite/Charcoal Gray
brandWinix
product_dimensions9.5"D x 9.5"W x 14.6"H
floor_area230 Square Feet
specification_metAHAM Certified, CARB Certified, ETL Certified
noise_level20 Decibels
particle_retention_size0.03 Micron
controller_typeTouch Control
contaminant_filtration_capabilityTrue
special_featureManual
manufacturerWinix
filter_classTrue HEPA, Carbon Filter, PlasmaWave Technology
item_weight7.1 pounds
item_model_numberA231
best_sellers_rank#176,367 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #273 in HEPA Filter Air Purifiers
care_instructionsHand Wash
assembly_requiredNo
number_of_pieces1
warranty_description2 year manufacturer
batteries_requiredNo
included_componentsTrue HEPA Filter

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Customer reviews

4.61,990 ratings

Customers say

Customers find the air purifier effective at filtering air and detecting heavy particulates like scents and cooking smoke, while being perfect for smaller rooms and offering good value for money.

★★★★★

One of THE Best Brand Air Purifiers On the Market

ViolinArcNovember 13, 2025

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. Read more

★★★★★

Terrific purifier

S. EmighMarch 24, 2025

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. Read more

★★★★★

Compact purifier that works efficiently

PatriotSeptember 10, 2025

The WINIX A231 is small in size but very effective. It runs quietly on the lower settings, and even at higher speeds, the noise is reasonable. Within a short time, the air feels fresher, and it noticeably reduces dust and odors in the bedroom. The filter is easy to replace, and the unit doesn’t take up much space, which makes it practical for smaller rooms. Controls are simple, with an auto mode that adjusts to air quality. Great value for the price! Very light but not flimsy! Read more

★★★★☆

Very quiet

DeadpanAnnJune 27, 2021

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. Read more

★★★★★

Easy setup, nice and quiet

jibOctober 14, 2025

I have only used this last night. I have suffered from allergies this year, and my husband is also getting them. My gf had suggested this brand. I decided to use it last night while we were asleep, in our bedroom. I won't know until I look at the filter, but I was happy that they have a night setting so that the bright lights don't shine, and it is very quiet. So far I am happy about how easy it was to set up, and start. It is small enough to fit on a table in our bedroom, so it doesn't get in the way. Eventually, since we live in SoCal, we will probably need it if there are any fires around us. Read more

★★★★★

Works great!

Brian HyndsDecember 20, 2025

Totally worth the investment. Does a great job filtering and it's super quiet. Read more

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★★★★★

Nice quality, great brand, looks nice, and good value!

KyleMay 27, 2025

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. Read more

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★★★★★

Solid Performer

TigerMuffinNovember 7, 2025

This has been a really good unit, haven’t had it for a year quite yet but I’m impressed with how quiet it is and does not raise my electric bill! I ended up purchasing one for each of my adult children and my SO. Read more

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