“I love that I can operate it from anywhere with the app. I can get it going before I get home from being outdoors. It is a very quiet machine. It has night mode and will dim or turn off all lights on the machine.”
Lesann
“I like having a one for each high-traffic room such as our master bedroom, office, and living room. Although this one was intended for our office, it is by far the most attractive air purifier I have yet to see, so I swapped it for the one we had in our living room.”
MrsAdams
“The unit will automatically adjust according to the air quality, and there is a light indicator letting you know how it accesses the value. You can also set it manually, with three fan speeds, and wireless capabilities.”
Kmill
Why choose Blue 511i Max?
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Perfect for busy families
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Whisper quiet when you need it most
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Kid-friendly design
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Reliable air quality insights
Exclusive features in the highly rated Blueair app
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Effortlessly take control of your air
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Custom Schedules to Fit Your Lifestyle
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RealTrack Technology®
Independently proven performance
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Fast & free shipping
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30 day home trial
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Authenticity guaranteed
Technical Specifications
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Filter Type
Particle & Carbon
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Dimensions(HxWxD)
36.8cm x 23.6cm x 23.6cm
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Product Weight
1.9 kg
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Energy Consumption
17 W
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Sound level
19-48 db
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Air outlet
Top
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Recommended room size
(4.8 - 2 ACH) 26 - 62 m²
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Air changes per hour (ACH)
4.
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Clean air delivery rate (CADR)
Pollen 296 m³/h
Dust 270 m³/h
Smoke 260 m³/h
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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: 709 Total 4 star reviews: 67 Total 3 star reviews: 31 Total 2 star reviews: 17 Total 1 star reviews: 52
89%would recommend these products
876 reviews
- CBCorey B.Verified Buyer2 days agoReviewingBlue Pure 511i Max Bundle USRated 5 out of 5 starsConfident Now
I’m assuming it works. I am reassured.
🔥 💨 —> AQI 😃
- SHSusan H.Verified Buyer2 days agoReviewingBlue Pure 511i Max Bundle USRated 4 out of 5 starsSmall room air purifiers
I like the small room air purifiers. They are quieter than the large one I have that has a low hum when it’s blue and at 0. The hum can be slightly grating so I enjoy that the smaller models don’t do this. However there is no light to indicate when the filter needs to be changed. The instruction booklet indicates a button that doesn’t exist on the model.
BUBlueair UK4 minutes agoThank you very much for sharing your feedback with us! We understand that you have a few questions regarding the unit and the process for resetting the filter. Please rest assured that our dedicated support team will be reaching out to you shortly to provide detailed assistance and answer all of your questions.
- BDBob D.Verified Buyer3 days agoReviewingBlue Pure 511i Max Bundle USRated 5 out of 5 starsGreat Value!
To get these at that price was amazing!
- CDCarolyn D.Verified Buyer3 days agoReviewingBlue Pure 511i Max Bundle USRated 5 out of 5 starsVery helpful for peace of mind
I bought a large unit and two small room units during the wildfires up in Ely Minnesota. The smoke was so bad here. The blue Air purifiers arrived very quickly and immediately began cleaning the air. I have a blue air purifier in my room which is probably 15 or 20 years old. It runs all the time. These new units only run when it needs to clean the air and when it senses that it needs to turn on. I really like that feature. Not only can we breathe better, but it has helped very much with the anxiety about the air quality.
- GTGregor T.Verified Buyer4 days agoReviewingBlue Pure 511i Max Bundle USRated 3 out of 5 starsFaulty air pollution sensors?
The purifiers look good and run quietly. Unfortunately, their pollution sensors don’t seem to work. They both show consistently 0 PM2.5. I doubt that this can be true, and it does not correspond the reading of my air conditioning.
BUBlueair UK4 days agoThank you for sharing your feedback. We’re glad to hear you’re satisfied with the purifier’s design and quiet operation. Regarding the PM 2.5 readings, we’re sorry for the concern this has caused. Our support team will be reaching out to you directly to help troubleshoot the sensor functionality and ensure your unit is working as intended.