Customer reviews from www.blueair.com
Blueair - F4MAX Replacement Filter for 411i Max & 411a Max Air Purifiers AHAM Certified HEPASilent 99.97% Particle & Odor - Black
Average customer rating
4.2
(48 Reviews)
Rating breakdown 48 reviews
5 Stars
35
4 Stars
2
3 Stars
3
2 Stars
2
1 Star
6
85%of customers recommend this product.
(
33 out of
39)
Customer Reviews for Blueair - F4MAX Replacement Filter for 411i Max & 411a Max Air Purifiers AHAM Certified HEPASilent 99.97% Particle & Odor - Black
Customer Rating
5
Helps my lung issues
on January 19, 2026
Posted by: Carol L.
from US, United States
Been using for 2 years , 24/7 which help my lungs. Feel I am breathing better. 🫁
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
3
User Manual / Which Filter
on January 5, 2026
Posted by: katie
from US
I cannot find the user manual for my Blue Pure 411a Max and I am also unclear what filter I should order to replace the existing one. Which filter (Particle & Carbon, SmokeBlock, or AllergenBlock) will filter Covid & flu viruses out of the air? Thanks.
Written by a customer while visiting www.blueair.com
Customer Rating
5
411a Max Particle + Carbon Filter
on December 13, 2025
Posted by: Earl P.
from US, United States
When I went to change the filter, I could not believe how much dust was trapped in the filter. I was very impressed with it!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Blue Air 411iMax
on November 26, 2025
Posted by: Grayson T.
from US, United States
I have been using the Blue Air products for several years now and all of their purifiers and filters work great, especially the 411iMax and 211iMax filters, carbon and Allergen. I would certainly recommend all of their products.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Works good
on November 25, 2025
Posted by: Glenn P.
from US, United States
Works good. Bought these thinkers maybe they would be better than the generic version.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Debbie33
from Richmond CA
Gender:Female
Verified Purchase:Yes
Very good filter, fits perfectly. Was packaged well. Happy with product.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Love my BlueAir!
on November 4, 2025
Posted by: Debbie33
from US
Very good filter, fits perfectly. Was packaged well. Happy with product.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Anonymous
from Surry NH
Gender:Female
Verified Purchase:Yes
Love this air purifier. Just enough white noise also. Amazed how dirty the filters get over time and how I like a “cleaner “ home with it.
Written by a customer while visiting www.blueair.com