Home › Air Purifiers › Blueair Blue Pure 211i Max vs Blueair Blue Pure 311i Max
Blueair Blue Pure 211i Max vs Blueair Blue Pure 311i Max
Blueair's $300 model meets Blueair's $250 model. We tally wins category by category, then call a verdict.
Our recommendation
The Blueair Blue Pure 311i Max wins outright, better on more specs and cheaper by $50.
Blueair Blue Pure 211i Max: 2 category wins Blueair Blue Pure 311i Max: 4 category wins
Side by side
Blueair Blue Pure 211i Max
$300
Blueair Blue Pure 311i Max
$250
CADR
360 CFMWin
250 CFM
Coverage
60 m²Win
35 m²
Noise (low)
24 dB
23 dBWin
Noise (high)
53 dB
51 dBWin
True HEPA
Yes
Yes
Activated carbon
Yes
Yes
Smart app
Yes
Yes
Voice control
Yes
Yes
Filter cost / yr
70 USD
60 USDWin
Dimensions
33 × 33 × 52 cm
25 × 25 × 42 cm
Weight
5.4 kg
3.5 kgWin
Blueair Blue Pure 211i Max
A high-CADR HEPASilent purifier that clears large rooms fast while staying impressively quiet.
Blueair Blue Pure 311i Max
A compact, quiet Swedish purifier with HEPASilent tech and smart auto for medium rooms.
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