Blueair Blue Pure 311i Max

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Overall

#135 in

Air Purifiers

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Sentiment score71% positive
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Last updated: May 20, 2026

Reddit Reviews

Reddit IconBlowingleaves17
3 months ago

Blue Pure 311i + Max with a smoke filter. [https://www.blueair.com/products/blue-pure-311i-max](https://www.blueair.com/products/blue-pure-311i-max)

Reddit IconBest-Instance7344
6 months ago

I went with the Blue air 311i for my dust allergy

Reddit IconCanOk9124
11 months ago

We just got a Blueair 311i MAX last week! So far it seems good

Reddit Icongregthejingli
9 months ago

We use the Blueair 311i max and 411i max, you can order a slightly more expensive smokeblock filter for them specifically made to filter out the particles in wildfire smoke. These units will also give you a readout on your phone to monitor the air quality in your home.

Reddit IconHeionX
21 days ago

Recently purchased the BlueAir blue pure 311i MAX because I have 3 dogs and also wanted odor/smoke control. This was to replace the two winix c545 that I have. Total price was about $180. It took me down a path of learning about CADr ratings. The Blueair Blue Pure 311i Max air purifier has a (CADR) of 250 cubic feet per minute (CFM) for smoke, pollen, and dust. It is designed for medium-sized rooms, capable of filtering 387 sq. ft. in approximately 12.5 minutes. Taken from a Google search CADR Guidelines for Room Size Small Rooms (<200 sq ft): Look for a CADR of 100-150. Medium Rooms (200-400 sq ft): Look for a CADR of 150-250 Large Rooms (400+ sq ft): Look for a CADR of 250+. I wanted a purifier that was more than what I needed. I have a 1950s home and low ceilings and small rooms. This sits in my living room which is only about 300sq ft. It is also quiet (23 dB - 50 The 211i max is for larger rooms.

Reddit Iconnipseymc
7 months ago

I got an Amazon Smart Air Quality Monitor and put it on my A1 mini z axis. I have a Blueair 311i max with a Smoke Block filter (it’s their replacement filter with the highest level of carbon) next to it. When the monitor detects VOCs it will alert me and its light will turn red. I can turn the Blueair up to level 2 or 3 and the monitor will return to yellow or green (moderate or good). So, yes it will help, but you need carbon in the filter to absorb the VOCs from what I understand.

Reddit IconHTHID
4 months ago

Another vote for BlueAir Blue Pure series, we have them in our bedrooms and living room and they are great - you will be amazed when you change the filters in a few months

Reddit IconAcceptable-Basil4377
10 months ago

It helps a lot. I bought it due to smoke but I’m happy to get rid of cooking and dog smells. I have one from Blueair.

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