Blueair - Blue Pure 311i Max
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Based on 1 year's data from Mar 17, 2026 How it works
Liked most:
23
0
"I have terrible allergies and use Blue Air on every level. Works amazing."
"Super noticeable difference ... even just the fabric pre-filters catch a lot and their appearance varies from room to room (ex. dust in the bedroom, cooking oils in the kitchen) which leads me to believe they’re working!"
"It's amazing the difference it makes. ... Also the filters are a wildly different color when I replace them."
19
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"I have terrible allergies and use Blue Air on every level. Works amazing."
"happy to hear from guests our house doesn’t have a dog smell."
"Blueair has been awesome for our basement, dogs, cats, sometimes chickens and always a burning fire for the wood stove and you would honestly have no idea all of that was going on. ... I wfh in the basement sometimes and I could tell that without that I was feeling gunky. Buying it made a huge difference!"
6
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"Dead silent on the first setting"
"the fans are nice and quiet"
"I like that it has a night mode with a silent fan and no lights."
3
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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."
2
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"Have BLUEAIR , pretty solid, happy with its performance."
"My kids run Blueair 24/7. You’re overthinking this. They all clean air."
Disliked most:
4
3
"the auto setting barely did anything unless I literally blew smoke at them"
"Maalikabok pa rin kahit super sealed yung unit."
"I recently got a blueair air purifier to see if I like it and if I notice any difference. ... According to the built-in sensor, we have excellent indoor air quality. ... I've had it for about a month and I recently took the filter out to see if there was any noticeable dust or anything and it seemed pretty clean. ... But given what I've seen so far, I'm not ready to buy them for other rooms in the house since it is quite an investment and I haven't seen anything that makes me think it's effective."
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."
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."
1
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"the larger sizes have significantly more expensive filters"
"BlueAir is ok but the filters are small and replace more often."
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
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
feelmyice 0.1BlueAir Max Pure
Love my blueair - i have 3