“The Blue Pure 211i Max aced our tests, and on top of its powerful performance, it stands out for its energy efficiency, quiet operation, user-friendly features, and good looks.”
Wirecutter Best Air Purifiers of 2024
“On its higher setting, it’s terrific at removing dust, pollen, and smoke...CR members found Blueair air purifiers highly reliable and were quite satisfied with their purchase.”
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Why choose Blue Pure 211i Max?
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Advanced design for superior performance
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So quiet, you’ll wonder if it’s even on
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Smart features to fit your lifestyle
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Sleek customizable Scandinavian design
Meet our filters
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Particle & Carbon
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SmokeBlock
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AllergenBlock⁵
Exclusive features in the
highly rated Blueair app
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Smarter air, customized to you
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Set Schedules
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Welcome home technology
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Accurate filter lifetime tracking
Independently proven performance
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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)
22.7 x 14.4 x 14.4
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Product Weight
16.2 lb
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Energy Consumption
46 W
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Sound level
23-53 dB
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Air outlet
Top
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Recommended room size
674 sq. ft.
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Air changes per hour (ACH)
4.8
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Clean air delivery rate (CADR)
Pollen 450 cfm
Dust 452 cfm
Smoke 435 cfm
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Number of filters
1
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Speed control options
1 - 2 - 3 - 4 - Auto - Night
FAQ
Total 5 star reviews: 1.6k Total 4 star reviews: 150 Total 3 star reviews: 68 Total 2 star reviews: 42 Total 1 star reviews: 126
88%would recommend these products
2,028 reviews
- MVMike V.Verified Buyer3 minutes agoReviewingBlue Pure 511i MaxRated 5 out of 5 starsQuiet operation
This is our second Blueair. We use it in our bedroom. It is almost silent at low speed and very acceptable at medium speed when we are sleeping. It is very effective at filtering the air in our room. We clean the outer cloth filter every 3 months or so and the inner filter annually. We are very pleased this 511i.
- BBBrette B.Verified Buyer45 minutes agoReviewingBlue Pure 311i+ MaxRated 5 out of 5 starsI’m blown away!!!
This machine has truly made all the difference. I have 4 cats and 2 dogs, and the dogs sleep with me in my room. My room no longer smells like dog. It’s genuinely a miracle. My room is small and I did end up getting the medium-sized purifier, but I’ve been amazed at the quality of this product. I no longer wake up with a horribly stuffy nose. Even my plants in my house look better. I can’t sing enough praises about these air purifiers. They’re truly worth it. And the ease of the app and being able to turn all the lights off on it are wonderful!!! I love sleeping with it on full blast and no lights.
- DNDavid N.Verified Buyer7 hours agoReviewingBlue Pure 511i MaxRated 5 out of 5 stars5/5
Efficient with a small footprint.
- KKimVerified ReviewerYesterdayReviewingBlue Pure 511i Max BundleRated 5 out of 5 starsShocked at how it transformed our musky garage!
Our garage was once dusty and felt thick - best way I can describe the air quality. It has always served as the laundry area and storage for gardening supplies and recycling and many other things. It also houses the water heater and attic entrance. When we rescued 2 kittens a couple of years ago, we decided to have a pet door installed in the door that leads from the kitchen to the garage and to put the litter box in the garage. Even though I knew I would clean the box nightly, I was worried about odors permeating the already-yucky feel of the air quality in that space. I would never expect the cats to hang out in there and only needed them to visit that area when they had to, but because I didn't want to expose them to an even worse air quality situation being that a litter box was going to be added and because we didn't want to have to do laundry in there with worsening air quality due to the litter boxes being added, I decided to research air purifiers. I was happy with what I read about BlueAir and decided to get this model. I honestly didn't expect much, but I thought it was worth a try, and wow, it put all of my doubts to rest. I'm not exaggerating when I tell you that it literally transformed the feeling and the quality of the air in the garage. Within a couple of hours, it felt light and fresh and no longer stale and heavy. AND... we could not smell the litter box! We have a good system for when it's time to change the filter, and that is when we CAN smell the litter…
- DDDennis D.Verified BuyerYesterdayReviewingBlue Pure 211i MaxRated 5 out of 5 starsNA
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BBlueairYesterdayThank you very much for your response and for rating us with 5 stars. We are delighted to hear that you are enjoying your Blue Pure 211i Max unit and experiencing pure air in a peaceful environment. Your thoughtful and kind comments truly mean a great deal to us. We sincerely appreciate you taking the time to share such valuable feedback, as it motivates us to continue providing excellent products and service.