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
4.8
(135 Reviews)
Rating breakdown 135 reviews
5 Stars
122
4 Stars
5
3 Stars
1
2 Stars
2
1 Star
5
80%of customers recommend this product.
(
24 out of
30)
Customer Reviews for Blueair - Blue Pure 511i Max 926 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray
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: 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
Posted by: Tink802
from North central Vermont.
Gender:Female
Verified Purchase:Yes
This is our 4th Blueair. Others are the larger sizes. This works well as our travel size.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Ryan F
from San Diego
Gender:Male
Verified Purchase:Yes
Amazing quality product. Been wanting an air purifier now and I highly recommend getting this one it’s been nothing short of wonderful and has completely exceeded my expectations!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: SHKA
from Los Angeles, CA
Gender:Female
Verified Purchase:Yes
Aesthetically pleasing, whisper quiet purifier that actually works
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Lisa NH
Verified Purchase:Yes
I like that it not only cleans the air but the fan on level 3 makes the same sound as my white noise machine. Don’t need to use the white noise machine anymore
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com