Customer reviews from www.blueair.com
Blueair - Genuine 511i Max Replacement Filter for 511i Max AHAM Certified HEPASilent 99.97% particles, odors Carbon Filter - White
Average customer rating
5
(40 Reviews)
Rating breakdown 40 reviews
5 Stars
39
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
100%of customers recommend this product.
(
38 out of
38)
Customer Reviews for Blueair - Genuine 511i Max Replacement Filter for 511i Max AHAM Certified HEPASilent 99.97% particles, odors Carbon Filter - White
Customer Rating
5
Fast and Quite....
on May 11, 2026
Posted by: MICHAEL S.
from US, United States
Hardly tell it is running, and cleans air like a champ...
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Review
on May 5, 2026
Posted by: Jeri D. H.
from US, United States
I've loved my Blue Pure 511i Max since receiving it. I also bought a bunch more for family members. They all tell me it makes a big difference. Thank you!!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Feeling better
on May 4, 2026
Posted by: Evette L.
from US, United States
Sneezing has stopped and so has my constant runny nose. My red itchy eye has lessened.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Outstanding air quality
on April 30, 2026
Posted by: Kathy D.
from US, United States
My granddaughter couldn't come to my house without having sneezing fits. After BlueAir she spends the night and has no issues. It's so worth it.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
No more cat box smell.
on April 27, 2026
Posted by: Rosemary V.
from US, United States
We bought this to try to help with the smell of the catbox. It sits on top of the crate that it’s in. I still clean it every day but now nothing nasty hangs around. It’s like we don’t even have a cat. We’re very happy.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Blue Pure 511i Max
on April 21, 2026
Posted by: Lanier S.
from US, United States
Excellent Product and very quiet. Very nice for a bedroom. Easy to replace filter.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Blueair 511i Max Purifier
on March 26, 2026
Posted by: Mark A.
from US, United States
This air purifier works well. It has very easy setup and is extremely quiet. I have used it exclusively on the Auto setting, so it increases air purification as needed; otherwise it runs on very low fan speed, which conserves energy. It is very nice that it can be controlled via WiFi connection to the app. The app affords even more settings to control the air purifier than just the buttons on the unit, which I find useful. This air purifier is definitely a quality device.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
LET SLEEPING DOG LIE
on March 19, 2026
Posted by: lisa k.
from US, United States
ME AND MY CORGI DOG SEEM TO BE SLEEPING BETTER AND BREATHING BETTER IN THE MORNING. WHAT A BLESSING. SO QUIET AND SO FAR SO GOOD.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com