Blueair - Blue Pure 311i Max
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Reddit Reviews:
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Last updated: Dec 11, 2025 Scoring
Liked most:
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"the only ones whose fans have stayed smooth and quiet. ... i have owned 8 over 5-6 years at least without one single issue."
"the BlueAirs are the only ones whose fans have stayed smooth and quiet."
"Dead silent on the first setting"
39
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"it’s majorly helped w allergies and dog smell"
"I have terrible allergies and use Blue Air on every level. Works amazing."
"I have 3 Pro models and they can bring my inside, large pool villa, AQI to 20 when 150+ outside."
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"They're incredible and the best thing is that they have this washable cloth sleeve (pre filter) that goes over the entire intake which happens to wrap all the way around. ... It does such a good job that the actual internal filter stays significantly cleaner and doesn't need to be cleaned or changed as often. ... It's a game changer."
"Blueair imo because they have washable prefilters, and pet hair and dander is large and honestly doesn't need HEPA filters to clear it out the way, say, smoke does."
"The outer pre-filters do put up a lot of dust and I can throw them in the wash."
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"it’s majorly helped w allergies and dog smell"
"it's fantastic in keeping the farm smell to a minimum."
"I have terrible allergies and use Blue Air on every level. Works amazing."
9
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"the only ones whose fans have stayed smooth and quiet. ... i have owned 8 over 5-6 years at least without one single issue."
"have had mine for years and run it 24x7"
"I’ve had two BlueAir for five years now. Love them."
Disliked most:
0
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"the auto setting barely did anything unless I literally blew smoke at them"
"Their sensors suck"
2
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"the larger sizes have significantly more expensive filters"
"Those filters are crazy expensive, so that purchase turned into quite the "investment"."
"BlueAir is ok but the filters are small and replace more often."
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"Blue air is the best of the three, also isn’t HEPA but has a static generator which bothers some people."
"Although you'll find complaints it doesn't use a "real" HEPA filter"
"Blue air is the best of the three, also isn’t HEPA but has a static generator which bothers some people."
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"I don’t like they have an ionizer that you can’t disable. ... Ionizers create ozone, and when ozone reacts with different molecules it creates all kinds of new compounds that can’t be predicted."
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"OTOH, the two Blueair purifiers are on all the time and we have ***not*** noticed a decrease in the rate at which dust accumulates on the woodwork in the house."
"the auto setting barely did anything unless I literally blew smoke at them"
"Maalikabok pa rin kahit super sealed yung unit."
Own Levoit 400 for our main living area (1,100 sq ft apt), the smaller one in our bedroom (toddler sleeps with us). Had them prior to Covid and love them. I vacuum the filters when I can per the manual. I got my mom the blueair 311i max because she was closer to one of the “minor” fires here in LA and she loved it so much she got the mini for her bedroom along with my dad’s (they sleep in separate rooms lol). I ended up getting the mini to bring to work.
r/moderatelygranolamoms • What are the Best Air Purifier for Allergies? ->We just got a Blueair 311i MAX last week! So far it seems good
r/saskatoon • Air purifier ->What about brand names "hepa" filters like the blueairs "hepasilent" or airdoctors "ultrahepa" filters that use electrostatic and other forms of collection? We just picked up a blueair 311i max from target that was on sale for 159 usd. We are going on a mold prevention spree in our home in south Louisiana due to mold allergies with my kids. There's so much stuff out there to read through my head feels like it's going to implode lol. I just want something that will collect mold spores out of the air. I feel like if it can capture mold spores it'll get everything else also.
r/AirPurifiers • Stop buying True HEPA / HEPA H13 air purifiers ->We use the Blueair 311i max and 411i max, you can order a slightly more expensive smokeblock filter for them specifically made to filter out the particles in wildfire smoke. These units will also give you a readout on your phone to monitor the air quality in your home.
r/vancouver • What air purifiers are best for forest fire smoke? In a 400sq ft room? ->I'm a fan of blueair. WiFi controlled and you can see an air quality graph on the app. You're better off getting two medium sized ones placed somewhat equidistant from the center of the home. 311i Max I think I have. I've had a couple medifies that both broke. And since I was using 3rd party filters, no warranty coverage.
r/AirQuality • Best Air Purifier to Buy Now? ->this was the upgrade pick on the wirecutter article that recommended the coways. i have a few 411i and 311i around and they do a phenomenal job
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->You might not be able to get a commercial one that makes things nearly sterile, but I have had luck with both of these (I have a highly reactive airway, am allergic to the cats in the house, and asthmatic): [https://www.amazon.com/gp/product/B0BN2LZ9JH/](https://www.amazon.com/gp/product/B0BN2LZ9JH/) \- Only thing to note, it does have a nice little cover on it, but if you want it to work the way it should, you have to remove it. Leave the filter visible and exposed and it works really well and lasts a very long time [https://www.amazon.com/gp/product/B00D52E2XG/](https://www.amazon.com/gp/product/B00D52E2XG/) \- This one keeps my office clear. It used to be in my bedroom, but I didn't have enough floor space for it when I started working out so I got the above one which sits on my dresser. It has gotten me through more than a few stagnant air warnings here in the pacific northwest (when winter smoke, smog, and fine particulate are suspended for long periods of time in the air due to a lack of air movement)
r/BuyItForLife • Home air purifier. Especially those good for people with allergies ->We have this one in our bedroom https://www.blueair.com/us/shop/air-purifiers/blue-pure-311i-max/3539.html Blue Pure 311i Max for medium rooms! Looking online it looks like they've updated the model a little bit, but looks to be relatively the same! The filter we have on auto subscription is for this one too so couldn't have changed too much. We got the Pure 511 version for our nursery though since it's a pretty small room.
r/NewParents • Air purifiers in the nursery: best one? are they really necessary? ->I saw a youtuber that tests corsi rosenthal boxes, he uses a Blueair 311i Max as his standard to compare against, so I bought the Blueair. It works great and has partially-working Home Assistant support.
r/smarthome • To people who use Air Purifiers, do they work or is it a scam? ->I can also vouch to BlueAir customer support. I bought a second-hand air purifier and found out it was malfunctioning (weird noise coming from the motor). I sent over an email to suppport after having asked the seller for the receipt and they were able to send a new unit to me even out of warranty. Well, what happened to that unit? IT GOT STOLEN FROM MY PORCH. So I contacted BlueAir again. And they sent me a new one, AGAIN! As to the actual purifier, it's a 311i Max, it looks great and seems to work fine too. Have noticed less dust in the room it's at. It's pretty powerful but my rooms are all closed off from one another so doesn't help much for other rooms, however.
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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