Winix - AM90
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Reddit Reviews:
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Based on 1 year's data from Feb 24, 2026 How it works
Liked most:
7
2
"It’s got hepa, activated carbon, and perhaps best it has a prefilter catch which is just a really fine metal filter that catches large dust and hair."
"There’s 3 filters. A large particle one I vacuum monthly. A medium particle filter that replaced every 3 months and a fine particle filter that’s done every 12. A years kit of them is $30 on Amazon"
"Ours has a large item filter ( so like dog hair and large dust) then a carbon filter then a regular filter."
4
1
"I love mine because it's not as noisy as the cheaper brands ... I run it on it's highest setting when I'm not in the room, and it's second highest setting when I am close to it."
"Winix is a good option for cheap air purifiers that aren't horribly noisy"
"On power 3 it’s barely even audio"
18
3
"It wasn't until I upgraded to 2 winix machines that I finally got relief and it was instant."
"My husband and I both suffer from allergies and it definitely helps. ... The tree in our front yard turns my car green with pollen and we have zero issues in the house"
"We've loved our various models of Winix found at Costco for bunny cage and litterbox."
8
4
"My two Winix units are 11 years old with 24/7 use and still going strong!"
"They've been running 24/7 for years now (since COVID when I started caring about air quality) and no issues."
"I have a Winix in my bedroom that’s been running 24/7 since ~2010."
14
2
"my cheaper Winix outperforms it by a mile"
"cheap to maintain"
"They are cheap to buy"
Disliked most:
0
2
"The Winix has a light sensor that doesn't allow it to work in auto mode in a dark room. ... If I put mine in auto mode and turn the room lights off it goes into sleep mode which is basically turning it off."
"A window can be open across the house and my Ninja will notice a drop in AQI and speed up the fan while the winix just continues to blow slow. ... I have noticed if I turn the fan speed up on the winix it will notice the AQI change, but that makes the auto mode useless."
1
3
"I just opened up and replaced bearings on one that has been running for maybe 8 years as it got too noisy."
"One became noisy after 3 months."
"it has gotten noisier over time, especially on the “sleep” mode."
5
4
"I could buy a brand new unit for the price of 3 replacement filters."
"winix does the same…pre filter, carbon filter, hepa filter….I still had to change the carbon and hepa every six months."
"the filters last 9 to 12 months, unlike the Winix ones that we were replacing all the time."
FartFactory92 1.0I have a Winix AM90 and just got a Levoit Vital 200S-P. I like the Levoit more, more features, better app and slicker buttons/interface. They both have a filter and fan, they seem roughly the same so far.
mgithens1 1.0The c545 doesn’t have an ESP in it. The guide I followed has you add the ESP. Looks like there are quite a few supported models. Winix C610, AM90, HR1000, C909, T800, 5510, and 9800. https://github.com/iprak/winix https://github.com/mill1000/esphome-winix-c545?tab=readme-ov-file
Aggravating-Can6930 0.0Any filter with a charcoal filter layer will help some (Winix is one brand commonly available at Costco…I also have a more elaborate Rowenta)…my Winix came with multiple charcoal layer replacements. Dealing with total incontinence here, and not to criticize your MILs efforts, but you might want to look into the actual sources of the odors. Chairs, clothes that sit around waiting for wash, previously soaked furniture or carpet? If bedding or fabric furniture smells and you can replace it, do so. I use a combo of Depends on my father, and all his sleeping or seating surfaces have a first layer of puppy pee pads (Costco has large ones that work well and are cheap), and then a fabric layer on top (whether sheets or a chair cover or towel, tucked into the sides of the chair). Once he’s wet, after I changes his pants all clothes and chair covers and bedding goes in the wash (3-5 loads a day). For the mattress you can find on Amazon washable mattress covers (the whole bed ones don’t work that well but that’s my base layer and then a thicker more absorbent one that I fit across the middle section of his bed, and on top of that layered dog pee pads). So again, not sure if any of this advice helps but this method works for me.
2plus2equalscats 0.0I got annoyed when my winnnix developed a noise, but then I realized it was the unit I’ve been running almost 24/7 for ten years. Bought another refurb and I’m going to attempt to take the ten year old one apart and see if it can be fixed. I imagine there’s buildup at the parts you can’t regularly clean.
I double checked and it’s my 2019 era one that has the noise! The 2015-ish one is still fine.
1-800-get-lost 0.0Both of my Winix air purifiers started smelling like smoke, they are different models, cleaned weekly and filters changed regularly, I don’t recommend them.
7Sans 0.0you can't beat the physics. what you want is the big size as prioirty thing to look for first. then you can look into other things but the size of purifier(filter) has biggest impact. winix is solid imo for basiaclly 99% of the use case.
acrewdog 0.0Winix seems to be the play here. I have two and they seem to work and are common enough for filters to be inexpensive. The prefilter is easy to clean. I did recently have a DOA unit but the replacement was easy through Amazon.
Additional-Regret-17 0.0I have the Winix. No issues to date. I don’t use the plasma wave feature.
Aggravating-Tune6460 0.0Definitely recommend Winix. Australian and comes out top of various tests. (If you haven’t been warned- don’t buy Dyson) Super sensitive to more than just particulates and has a ‘pet filter’ that is changed monthly that goes around the main filter and prevents it getting clogged with dust. Helps to prolong its life if you have pets
ahoveringhummingbird 0.0Winix is a solid air purifier, but not this model. This only uses a thin filter, no charcoal. The true HEPA rectangular ones are not that much more but work so much better.
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