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
Doing great on burnt bacon odor
on January 16, 2026
Posted by: Ken L. K. L.
from US, United States
Even though we have an overhead vent above our stove I often stink up the house when I'm cooking. The Blue Pure unit does a good job removing the smell. It's easy to tell with the color coded air quality indicator. The app is nice for keeping track of the filter 'health'. We still have quite a while before a new filter will be needed. I was concerned about having to replace it too often but that doesn't look like an issue.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Carbon Filter
on December 17, 2025
Posted by: J S.
from US, United States
These fit perfectly, I wouldn't use the off-brands after reading reviews about the odd shaping. I also could tell a big difference once using the replacement filter and running the system overnight. It really helps in removing nuisance odors like smoke from a different unit in my building!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Anonymous
from Dover, DE
Gender:Male
Verified Purchase:Yes
Nice filters and easy to change. The app is very intuitive.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Carri
from BC Carri
Gender:Female
Verified Purchase:Yes
Love this product. It works. Air is clean and fresh even after cooking.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Anonymous
from Rio Vista, CA
Gender:Female
Verified Purchase:Yes
The max particle + carbon filter does an amazing job cleaning the air in multiple rooms. Since purchasing our Blue Air Purifier, I haven't head any head congestion or sinus infections. I did purchase the smoke filter and allergen filter thinking I would need more support during high allergy seasons and summer fires but so far the Max Particle + Carbon filter have kept unwanted particles under control. Couldn't be happier with this investment.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Xavier
from Cincinnati, OH
Verified Purchase:Yes
Having the filters on a subscription plan keeps it simple for me. This way I don't miss changing the filter in a timely manner.
Written by a customer while visiting www.blueair.com
Posted by: Siobhan Gormley
from Ottawa, Canada
Verified Purchase:Yes
Exactly what I needed for this device. Fit perfectly and the filter is working properly.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Lorie
Verified Purchase:Yes
My husband was having trouble breathing due to COPD. This has helped him tremendously. When I replaced the filter I couldn't believe how dirty it was and will continue to use.
Written by a customer while visiting www.blueair.com