Blueair Blue Pure 311i Max Particle and Carbon Replacement Filter
$33.99 was $38.99
New lower price save $5.00 (13% reduction)
TypeParticle and Carbon
In Stock
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4.7 out of 5 stars with 199 reviews
5 out of 5 stars
8 May, 2026
originally posted on blueair.com
Fresh clean air
Very pleased with my purchase and the quality they offer.
5 out of 5 stars
5 May, 2026
originally posted on blueair.com
Great filter
Not a lot to say about a filter but I can say it fit perfectly, reasonably priced for how long it lasts.
5 out of 5 stars
29 April, 2026
originally posted on blueair.com
Blue Air
I have been using my blue air for about 1 year now. I have 2 cats and it definitely helps with the dander and hair some. The best it works on is when I’m cooking and when there is smoke in the air . I recommend having one in your house. I also have smaller ones for bedrooms. Excellent product ..
5 out of 5 stars
28 April, 2026
originally posted on blueair.com
Cat Problems
I have cat allergies and live with a cat. I purchased this filter to help cut down on the pet dander and dust. After a few weeks of use I have noticed an improvement in my allergies and breathing.
5 out of 5 stars
24 April, 2026
originally posted on blueair.com
Great
It works great so far, and I haven’t had any complaints.
5 out of 5 stars
18 April, 2026
originally posted on blueair.com
Please bring back the 411
I am sadly disappointed that you no longer offer the 411 air filter; I already have two and wanted another.I ordered the 311and discovered I can’t use it because of the radio/microwave additions. I turned off the WiFi, but something else is causing emissions; perhaps the particle detector?I have a lung condition and am very sensitive to not only smoggy air, but also radio/microwave emissions. I really wish you would bring back the 411; it is a perfect, simple, well functioning device that has literally helped save my life, especially during the wild fires we have here frequently. When you stop providing filters for the 411, I don’t know what I will do. Theirrie Cook
5 out of 5 stars
9 April, 2026
originally posted on blueair.com
Clean Air
We have two dogs who use a dog door so there was always a lot of dust swirling around. The air is so clean now, dust is noticeably less and our air quality is excellent!!
5 out of 5 stars
7 April, 2026
originally posted on blueair.com
Living Room 311i
Love it! Works great! It stays quiet most of the time (except when the wife cooks) and it removes the odor fairly quickly. So far, very happy with it.
5 out of 5 stars
12 March, 2026
originally posted on blueair.com
Best air purifier ever!
Love my Blueair 311imax. Keeps my apartment dust free and odor free.
5 out of 5 stars
9 March, 2026
originally posted on blueair.com
Replacement Filter
My new filter was easy to install and my unit is working perfectly once again.
5 out of 5 stars
2 March, 2026
originally posted on blueair.com
New Filter
Unit did not indicate we needed a new filter but the air indicator light went from green to a white. Our air quality had aways been green. We followed the instructions with no fix until the manual said "call us". So I decided to first order a new filter. The unit is now back to green.No need to call but really!!!
5 out of 5 stars
25 February, 2026
originally posted on blueair.com
Great product!
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!
5 out of 5 stars
24 February, 2026
originally posted on blueair.com
The Best
We love both our Blueair Filters. I only have one candle left that's not battery operated. When I light it in the kitchen that is about 30' away from the filter it turns to red. Amazing.
5 out of 5 stars
17 February, 2026
originally posted on blueair.com
Silent, nice to look at, works just as it should
Our unit is over a year old now and we just replaced the main filter. We did have an ultrasonic humidifier in the room (we just moved into this condo in November 2025) which pumped out white dust as the water is so hard in this city. We turned it off and the Blue Air works great. It was working full blast prior to turning off the humidifier. We do love it though and our indoor air quality is always on "blue" now!
5 out of 5 stars
27 January, 2026
originally posted on blueair.com
Filter easy to change
It was surprisingly easy to change the filter the first time thanks to the clear description in the instruction manual that came with the air purifier.
5 out of 5 stars
27 January, 2026
originally posted on blueair.com
Great!
Everything from the packaging to the instructions on how to install was 5 Stars.This is a REALLY good product.
5 out of 5 stars
22 January, 2026
originally posted on blueair.com
Ease of filter installation .
I received my new filter and want to comment on how easy it was to install. Having my phone pared to the device is so helpful in daily use and maintenance. It’s very guilt as well.
5 out of 5 stars
20 January, 2026
originally posted on blueair.com
The strong silent type...
... 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.
5 out of 5 stars
14 January, 2026
originally posted on blueair.com
blue Pure 311i
A fantastic air purifier with a sleek design. Another gem from Blueair.
5 out of 5 stars
30 December, 2025
originally posted on blueair.com
Working as expected
Just changed the filters for the first time. Needed help and received it. Working well.