Blueair - Blue Pure 311i Max
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Based on 1 year's data from Feb 24, 2026 How it works
Liked most:
27
0
"it’s majorly helped w allergies and dog smell"
"has substantially lessened my seasonal allergy symptoms while in the house"
"I have terrible allergies and use Blue Air on every level. Works amazing."
22
0
"it's fantastic in keeping the farm smell to a minimum."
"it’s majorly helped w allergies and dog smell"
"has substantially lessened my seasonal allergy symptoms while in the house"
4
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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."
"Blue air. The prefilter is washable."
8
0
"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"
4
0
"have had mine for years and run it 24x7"
"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 BLUEAIR , pretty solid, happy with its performance."
Disliked most:
4
4
"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."
1
3
"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."
1
2
"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."
0
1
"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."
0
1
"the auto setting barely did anything unless I literally blew smoke at them"
"Their sensors suck"
Blowingleaves17 1.0Blue Pure 311i + Max with a smoke filter. [https://www.blueair.com/products/blue-pure-311i-max](https://www.blueair.com/products/blue-pure-311i-max)
CanOk9124 1.0We just got a Blueair 311i MAX last week! So far it seems good
Fungusunderaressack 1.0What 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.
gregthejingli 1.0We 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.
lmike215 1.0this 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
Mysterious_Head1556 1.0We 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.
nipseymc 1.0I got an Amazon Smart Air Quality Monitor and put it on my A1 mini z axis. I have a Blueair 311i max with a Smoke Block filter (it’s their replacement filter with the highest level of carbon) next to it. When the monitor detects VOCs it will alert me and its light will turn red. I can turn the Blueair up to level 2 or 3 and the monitor will return to yellow or green (moderate or good). So, yes it will help, but you need carbon in the filter to absorb the VOCs from what I understand.
Tupples- 1.0I 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.
ahsm 0.5I have the 311i max and I really like it. I never knew air purifiers could be so good. I always thought it was a scam until I used one and noticed the difference. I have one in my living room and when we fry onions or something similar it goes off right away. Never knew they had an app.
Best-Instance7344 0.5I went with the Blue air 311i for my dust allergy
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