Customer reviews from www.blueair.com
Blueair - Blue Pure 511i Max 926 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray
Average customer rating
4.7
(145 Reviews)
Rating breakdown 145 reviews
5 Stars
127
4 Stars
8
3 Stars
2
2 Stars
3
1 Star
5
80%of customers recommend this product.
(
28 out of
35)
Customer Reviews for Blueair - Blue Pure 511i Max 926 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray
Posted by: Jodi K
from Statesboro, GA
Gender:Female
Verified Purchase:Yes
When shopping for an air purifier for my son, who has terrible allergies, this model was recommended in Consumer Reports. It has been great! I did not buy the additional “allergen” filter, figuring I would try the standard filter first. From the first night, he was much less congested and able to sleep better. I think it is very quiet, especially on night mode.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Stop reading reviews and just buy it
on July 25, 2025
Posted by: Chickencrqp
Awesome product. Had this 6 months so far and my sinus issues have almost completely subsided. The app, alerts and lights on this are very useful. The sensor picks up crazy things like when you bug spray across the house and turn on the fan and scrub the air in a matter of minutes (or so it says). They are pretty quiet unless you max speed them, but even then theyre not too loud. The washable cover/filter is great, after a while you can see it needs a wash, toss it in the washer and its all good. Would 100% recommend.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Buck
Verified Purchase:Yes
Recommended by Consumer Reports and -as usual- CR knows. Quiet, small, nice looking. The very first morning I awoke with noticeably less congestion. Money well spent.
Written by a customer while visiting www.blueair.com
Customer Rating
1
Sensors aren't sensitive so auto mode isn't useful
on August 1, 2025
Posted by: SeanC
from Pennsylvania
Gender:Male
I love BlueAir in general so I bought 3 of these to try to automatically handle the fluctuating air quality due to Canadian wildfire season over the summer/fall which causes bad air over much of North America.
However, the sensors on all three units are extremely permissive. I have high quality PurpleAir monitors to give real readings but the only time these 511i Max units would say anything other than PM2.5 of 0, was when I blew candle smoke directly into the sensor holes. That turned the fan up for 10 seconds, then back down and it said the air was great again (the real PM2.5 was around 15 in the whole house at this time, because of the wildfires).
Therefore, if I want to filter, I'll have to manually control them through the app, but that makes this product about 3x the cost of other smart filters that you control through apps & it won't be responsive to changes in the air overnight in my children's rooms.
Very disappointed :(
No, I would not recommend this to a friend.
Response from www.blueair.comBy Blueair Team, Blueair, August 1, 2025
Thank you for sharing your experience and bringing this to our attention. We're sorry your Blue Pure 511i Max isn't performing as expected, especially during critical times like wildfire season. We've reached out to you directly to better understand your experience with the sensors and help find a suitable resolution. Your family's health and comfort are important to us, and we're committed to assisting you further.
Written by a customer while visiting www.blueair.com
Posted by: Grandma Rob
Verified Purchase:Yes
I bought this as a baby shower gift which will take place on Oct. 25. I will have a review after the shower. It was a recommendation on the gift options.
Written by a customer while visiting www.blueair.com
Posted by: Anonymous
Gender:Male
Verified Purchase:Yes
I returned it because it emits ozone and my cat has asthma.
No, I would not recommend this to a friend.
Response from www.blueair.comBy Blueair Team, Blueair, March 10, 2025
Thank you for sharing your experience with our 511i Max. We apologize for the disappointment you've faced with the product's performance. Your feedback is valuable to us, and we are committed to improving both our products and our support. If you have any concerns that we can address, please reach out to us directly and we would be happy to help.
Written by a customer while visiting www.blueair.com
Posted by: Monika
Verified Purchase:Yes
Great product, modern look .Works well ,easy to use, quiet.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Great Technology and Actually Cleans the Air
on December 9, 2024
Posted by: Misterrobot
from Iowa, USA
Gender:Male
Verified Purchase:Yes
Man this thing is quiet! Enjoy the scheduling function so that it can run in the bedroom on high a few hour in the afternoon when we are not home and then whisper quiet at night. We purchased the smoking/charcoal filter as our bedroom was not so fresh. After the first day the smell disappeared! (from my clothes after a long vacation)
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com