Blueair - 311i+ Max
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Based on 1 year's data from Mar 17, 2026 How it works
Liked most:
18
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."
9
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"I have terrible allergies and use Blue Air on every level. Works amazing."
"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!"
"the filters bring the house to below 1ppm within an hour or so."
6
0
"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."
7
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"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!"
"Yes we use Blueair and they make a huge difference especially with dog related smells or puppy accidents."
3
0
"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."
Disliked most:
2
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
2
"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"
D3skL4mp 0.5You’ll typically see the same top-rated models across Wirecutter, Consumer Reports, and Tech Gear Lab: the BlueAir Blue Pure 311i+ Max, Coway Airmega 1512HH, and Winix 5500. The best choice probably depends on the size of the space you’re trying to cover. For my downstairs rooms, I went with two BlueAir units (the 311 and 211 models). BlueAir offers a 25% discount for teachers, military, police, and possibly firefighters (can’t recall for sure), available in both the U.S. and Canada. They also offer a 15% discount on filter replacements if you sign up for a 6-, 9-, or 12-month subscription. For my upstairs office/bedroom—since it’s a smaller space—I went with the Coway Airmega 1512HH and have been happy with it.
SnooKiwis102 0.5The Blueair Blue Pure 311i+ Max is the best bang for the buck that I've seen.
Blueair Blue Pure 311i+ Max. Techgearlab.com top choice, also top rated by Consumer Reports.
_sparklestorm 0.5Powered up my new Blue Pure 311i+ Max w/smoke filter this weekend and so far so good!
ahsm 0.2I 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 0.2I went with the Blue air 311i for my dust allergy
MysterySkanker 0.0I have tried and gotten rid of Bluair and levoit- just inadequate performance and louder than I like. I replaced them with Medify and have been very happy with the switch. If memory serves I have an ma-50 in the living room and ma-40 is each bedroom.
9ine6ix5ive 0.0I have BlueAir in all my rooms. Makes a significant difference for me.
Acceptable-Basil4377 0.0It helps a lot. I bought it due to smoke but I’m happy to get rid of cooking and dog smells. I have one from Blueair.
accountaholic26 0.0We love our blueair also. Got a dog a month ago and happy to hear from guests our house doesn’t have a dog smell.
Adorable_Dust3799 0.0I love my blueair. It's highly rated for the price, and has a cloth sleeve you wrap around the outside and toss in the wash that prefilters out the husky fluff. If your pup is smelly it's probably oily, and needs either more roll in leaves and dirt time or more frequent bathing. A simple rub with a damp cloth frequently, like daily if you're not using soap, will work wonders.
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