Customer reviews from www.blueair.com
Blueair - F3MAX - 311i Max Filter - White
Average customer rating
4.5
(41 Reviews)
Rating breakdown 41 reviews
5 Stars
34
4 Stars
1
3 Stars
2
2 Stars
0
1 Star
4
91%of customers recommend this product.
(
31 out of
34)
Customer Reviews for Blueair - F3MAX - 311i Max Filter - White
Posted by: Gargozola
Verified Purchase:Yes
The Blue Pure works very well. I wish that there was more flexibility in how to order a replacement filter, and from what source. That keeps me from giving the product five stars.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: BlindMan60
Verified Purchase:Yes
This was working good until I changed tge filter, now both of my blu units run constantly they used to just turn on when the air was poor or not clean now they will not stop running i had to plug them both.
Response from www.blueair.comBy Blueair Team, Blueair, February 28, 2025
Thank you for your feedback regarding the 311i & 411i Max. It sounds like the issue you're experiencing may be due to a dirty sensor on the back of the unit. To clean the sensor, you'll need to unscrew the sensor lid on the back of the device and use a cotton swab to gently clean the sensor area. This should resolve the problem. We have also reached out to you directly to provide further assistance and ensure the problem is resolved.
Written by a customer while visiting www.blueair.com
Posted by: Jennifer S
from Beverly, MA
Gender:Female
Verified Purchase:Yes
All you need to do is look at the photo - the Blueair 300i+ Max and its filter system deliver on what they promise! I have an indoor cat and I keep the purifier a few feet away from his litter box. My one regret is not buying this system years ago.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Posted by: Nerenberg
from Philadelphia pa
Gender:Female
Verified Purchase:Yes
I purchased the blue air filter and my air purifier is still saying my filter is only 50%
So I’m not a happy customer right now. I love the air purifier but why is my filter only saying 50% I just purchased it.
So I’m not a happy customer right now. I love the air purifier but why is my filter only saying 50% I just purchased it.
Response from www.blueair.comBy Blueair Team, Blueair, May 16, 2025
We are glad to hear that your love your 311i Max purifier! When replacing the filter in your 311i Max, the filter timer needs to be manually reset—otherwise, the display may still show the previous filter’s usage. To reset it, just press and hold the fan speed button for 15 seconds until the indicator resets. If you experience any issues, please don't hesitate to reach out to us directly, we would be happy to help.
Written by a customer while visiting www.blueair.com
Posted by: Take a Breath
from Denver CO
Gender:Female
Verified Purchase:Yes
We just hit our master bathroom remodeled. We have a en suite bathroom. The demolished.the porcelain tile, tore out the tiled shower and floor, remove the bathtub and totally replaced a window, built a wall and put in new baseboards. We had changed our filter about three months prior and I thought for sure our Blue Air purifier would need a new filter after all that. I checked the app and we still had 60% left on our filter. That’s quite a task for a little air purifier. Like the little pink bunny for batteries, it just keeps on going.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
The strong silent type...
on January 20, 2026
Posted by: Roberta M.
from US, United States
... rarely do you hear the Blueair air purifier, but I certainly know when it is turned off. I have asthma that is now diagnosed as COPD. Without this unit on, I wake up during the night unable to breathe. Blueair has changed my life.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Works as intended
on November 26, 2025
Posted by: Steven M.
from US, United States
The Blue Pure 311I Max + carbon filter works as intended keeping the inside air clean and removing pet orders (we have a cat). We are happy with your products. Respectfully, Steve M.
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com
Customer Rating
5
Great product!
on February 25, 2026
Posted by: Sandra O.
from US, United States
I have recently changed my filter for the second time and expected it to be cleaner than before because I had a very fluffy cat. To my surprise it was absent fur and dander, but still had a lot of dust and particles inside the filter. Great job!
I would recommend this to a friend!
Written by a customer while visiting www.blueair.com