Blue Pure 511i Max

Blueair

Blue Pure 511i Max

10 positive 0 neutral 4 negative

Based on 14 Reddit mentions

$139.00

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Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featurefilter qualityClear feature

Please help me not waste money

Since you want to purify your whole 1300sq ft living space, do you have forced air heat and AC? If so, you can get a MERV 8 furnace filter that will work very well. If you don’t have forced air hvac, the box fan CR filter is the next best thing for the large living space. Otherwise for bedrooms, I r

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johnb300m in r/AirPurifiers

April 4, 2026 2:54 PM

2

Replacement filter help

My spec is 511i and Amazon lists it as available however when I order it they give me the wrong one, they give me the 511 one which doesn’t fit my purifier. I have gone in person to blueair trusted sellers and they have also given me the wrong one

Molmuzz26 in r/Blueair

April 4, 2026 10:16 AM

1

Would an Air Purifier help solve this problem?

Yes, an air purifier would definitely help in the bedroom, but it must have one that uses carbon filters, not just HEPA ones. Price wise, since the room is only 121 sq. ft., you can go with a smaller room air purifier, but the most inexpensive ones may not work that well in a smoky room. I would sug

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Blowingleaves17 in r/AirPurifiers

February 5, 2026 8:12 AM

1

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