“It’s a great performer for a machine of its size and power. It’s also extremely quiet, staying below our 50-decibel limit for comfortable TV viewing and sleeping, even on high...its display goes dark automatically, so this machine won’t be a distraction when you’re trying to nap or work.”
Wirecutter Best Air Purifiers of 2024
Why choose Blue Pure 511?
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Compact & Space-Saving Design
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Simple, One-Button Control
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Whisper Quiet
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Sleek Scandinavian design
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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Dimensions(HxWxD)
13.4” x 7.9” x 7.9”
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Product Weight
1.9 kg
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Energy Consumption
16 W
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Sound level
24-49 dB
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Air outlet
top
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Recommended room size
16 m²
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Air changes per hour (ACH)
4.8
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Clean air delivery rate (CADR)
Pollen 123 cfm
Dust 123 cfm
Smoke 122 cfm
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Number of filters
1
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Speed control options
1 - 2 - 3
FAQ
Total 5 star reviews: 53 Total 4 star reviews: 12 Total 3 star reviews: 8 Total 2 star reviews: 6 Total 1 star reviews: 6
76%would recommend this product
85 reviews
- BCBeverley C.Verified Buyer3 days agoRated 3 out of 5 starsGreat except...
So far so good. The unit is small, quiet, nice to look at and cleans a small room beautifully. But I find it hard to set the level of the unit as the touch key is very unresponsive and it's hard to tell what level the unit is working at or if I've turned it off properly.
BUBlueair UK3 days agoThank you for sharing your experience with your purifier. We’re glad to hear that you appreciate its compact design, quiet operation, and effectiveness in keeping your room clean. We’re sorry to learn about the difficulty you’ve had with the touch key responsiveness and setting the levels. Our support team will be reaching out to assist you and help ensure the unit is working smoothly for you.
- JRJohn R. L.Verified Buyer3 days agoRated 1 out of 5 starsMatthew
Matthew
BUBlueair UK3 days agoThank you for sharing your feedback. We’re sorry to hear that your experience with the Blue Pure 511 has not met expectations. Your input is very important to us, and our support team will be reaching out to better understand the issues you’ve encountered and to assist you further. We truly appreciate you taking the time to let us know.
- JOJill O.Verified Buyer1 month agoRated 5 out of 5 starsI breathe so much better with Blue Pure 511
My BlueAir purifier suddenly stopped working after a year and when I contacted customer service, they replaced it immediately. My new Blue Pure unit arrived within a week and I am breathing easily again. I have allergies and this air purifier really minimizes the symptoms I have. Thank you BlueAir!!
- VKVictoria K.Verified Reviewer1 month agoRated 5 out of 5 starsClean Air Blessing
Firstly, I never leave product reviews because my time is always full with life. But, I needed to do so on this product. It has been such a wonderful addition to my home that I actually purchased a second one for another room in the house. When it came time to change the filters, I was astonished, to say the least, of its effectiveness in cleaning the air in my home. It literally blew my mind. I must share some pictures of all the dust and pet dander ( I have a dog ) it collected. I routinely change my HVAC air filter every other month as well as having my air ducts cleaned and I was still collecting dust and other air particles with my purifier.
Look at my before and after of the filters when I changed them and then look at the collection of particles on the cover. I do clean my home. I even dust my walls. I do a lot and I still collected so much on my purifier. That's how powerful this purifier is and I totally recommend buying one. Especially this brand. It catches particles we don't see. Can you imagine breathing all of that in? No thank you.
Thank you BluAir
BUBlueair UK1 month agoThank you for sharing your valuable feedback. Reading your incredible note has absolutely made our day, and we are so deeply moved that you took a moment out of your busy life to share your journey with us. Knowing that our air purifiers have earned such a special place in your home, and that you welcomed a second one to protect your family, is the highest compliment we could ever receive. Your dedication to maintaining a pristine environment for you and your pet is truly inspiring, and we would be absolutely thrilled to see the photos you mentioned of your filter's impressive collection! We are so incredibly honored and grateful to have you as a passionate, loyal member of our Blueair family, and we look forward to keeping the air in your home pristine for many years to come.
- NMNancy M.Verified Buyer2 months agoRated 5 out of 5 starsTrust this Air Cleaner
Great product and great customer service!