Why choose Blue Pure 311i+ Max?
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Wellness in every breath
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Whisper-Quiet Sleep Mode
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One-Touch Control
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Stylish Scandinavian Design
“I recommend Blueair air purifiers to my patients because of their strong performance and their commitment to third party testing, which gives me peace of mind that the airborne particles that commonly exacerbate allergy and asthma symptoms are being captured*”
Dr. Priya Bansal
“Blueair's 311i+ Max was the best at capturing the full range of contaminants floating through the air in a typical home. Its advanced multi-level filtration captures contaminants of all sizes — not just dander and pet hair, but also cooking fumes, dust mites and pollen.”
Best Overall Air Purifier
Meet our filters
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Particle & Carbon
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SmokeBlock
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AllergenBlock⁵
Exclusive features in the Blueair app
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Smarter air, customized to you
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Schedules to fit your lifestyle
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Welcome Home Technology
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RealTrack Technology®
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Free and fast shipping
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30 day home trial
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Extended warranty
Technical Specifications
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Dimensions(HxWxD)
21 x 12.5 x 12.5
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Product Weight
7.9 lb
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Energy Consumption
38 W
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Sound level
23-50 dB
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Air outlet
Top
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Recommended room size
525 ft²
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Air changes per hour (ACH)
4.8
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Clean air delivery rate (CADR)
Pollen 446 cfm
Dust 370 cfm
Smoke 339 cfm
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Number of filters
1
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Speed control options
1 - 2 - 3 - Auto - Night
FAQ
- ABAnn B.Verified BuyerYesterdayReviewingBlue Pure 311i+ MaxRated 5 out of 5 starsVery Pleased
I purchased the Blue Pure 311i+ Max for my ~600 sq ft finished basement to add some flow to what felt like stagnant air and to help with a persistent odor that I couldn't identify. Not only has the unit solved both issues, but it's super quiet and the air feels fresh and pure 100% of the time. I'm so happy with this device.
- KLKen L. K. L.Verified Buyer4 days agoReviewingBlue Pure 511i MaxRated 5 out of 5 starsDoing great on burnt bacon odor
Even though we have an overhead vent above our stove I often stink up the house when I'm cooking. The Blue Pure unit does a good job removing the smell. It's easy to tell with the color coded air quality indicator. The app is nice for keeping track of the filter 'health'. We still have quite a while before a new filter will be needed. I was concerned about having to replace it too often but that doesn't look like an issue.
BBlueair5 hours agoThank you for the great feedback on your Blue Pure 511i Max. We’re glad to hear it’s helping tackle cooking odors and making a noticeable difference in your home. It’s great that the air quality indicator and app are making it easy to track performance and filter life. We appreciate you choosing Blueair and hope it continues to support a fresher, more comfortable space.
- JVJennifer V.Verified Buyer4 days agoReviewingBlue Pure 511i Max BundleRated 5 out of 5 starsGame Changer
These little guys do a big job. I live in a house that’s over 100 years old and only has radiator heat, so no ductwork for any air exchange. I was shocked at how polluted the air in my bedroom was. This little guy ran strong for 10 hours and got the room into the green zone. Been there ever since. Planning to buy more for other rooms in my house. Love the design and the phone app!
- CVChristy V.Verified Buyer5 days agoReviewingBlue Pure 311i+ MaxRated 5 out of 5 starsWorking well
We bought 2 units, and they both are working great.
- MGMichelle G.Verified Buyer1 week agoReviewingBlue Pure Mini Max BundleRated 5 out of 5 starsExcellent air purifiers
I bought the two small ones because I travel as a nurse and I’d like to make sure I have one with me. And this year we’re traveling all the way to Arizona for two months and I brought both of them with. They work really well and it’s nice to have the comfort of an Air Purifier no matter who I’m staying with or where. It’s a great product.