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Blueair Blue Pure 211i Max vs Blue Signature Large

Which Air Purifier Is Better?

    Top
    Main Differences
    Design
      BodyDisplay And ControlFilter Configuration
    Performance
      Particle Filtration RateLow-Noise Particle Filtration RateNoise
    Comments

Products

Blueair Blue Pure 211i Max 
early access
Blueair Blue Signature Large

Tested using Methodology v1.2

Updated Jun 04, 2026 08:31 PM

This review is in Early access

Unavailable
Missing store

Tested using Methodology v1.2

Updated Jun 08, 2026 02:59 PM

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Blueair Blue Pure 211i Max Picture

Track

Blueair Blue Signature Large Picture

Track

Activated Carbon
Sheet
Activated Carbon
Sheet

Our Verdict

Blueair Blue Pure 211i Max

Blueair Blue Signature Large

Full comparison details regarding individual product score sets can be found in the section below

GIFT THIS COMPARISON

0 

Variants

  • Blue Signature Large (Nordic Fog)

Review

See Blueair Blue Pure 211i Max Review
See Blueair Blue Signature Large Review
1 
0 

Check Price

 
Nordic Fog
Blue Signature Large
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Blue Signature Large
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Main Differences for
Pets

Threshold 

0.10

Pets 
 

0.0
9.1
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Full Comparison

Design

Body  

Air Purifier Design Photo  

Blueair Blue Pure 211i Max Air Purifier Design Photo Sample

SAMPLE

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for pictures & test results

Compare High-Res
Blueair Blue Signature Large Air Purifier Design Photo

Height  

Lock" (Lock cm)
17.0" (43.2 cm)

Width  

Lock" (Lock cm)
14.4" (36.7 cm)

Depth  

Lock" (Lock cm)
14.4" (36.7 cm)

Weight 
 

Lock lbs (Lock kg)
12.1 lbs (5.5 kg)

Power Cord Length  

Lock" (Lock cm)
73.4" (186.5 cm)

Wheels 
 

Locked
No

Display And Control 
 

Main Controls  

Blueair Blue Pure 211i Max Main Controls Sample

SAMPLE

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for pictures & test results

Compare High-Res
Blueair Blue Signature Large Main Controls

Alternative Controls  

Blueair Blue Pure 211i Max Alternative Controls Sample

SAMPLE

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for pictures & test results

Compare High-Res
Blueair Blue Signature Large Alternative Controls

Filter Change Indicator 
 

Locked
Yes

Air Quality Sensor Auto Mode 
 

Locked
Yes

Remote Control 
 

Locked
No

App 
 

Locked
Yes

Display On/Off 
 

Locked
Yes

Timer Function 
 

Locked
Yes

Number Of Fan Speeds 
 

Lock
5

Filter Configuration  

Filter Configuration Photo  

Blueair Blue Pure 211i Max Filter Configuration Photo Sample

SAMPLE

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for pictures & test results

Compare High-Res
Blueair Blue Signature Large Filter Configuration Photo

Filter Localization Photo  

Blueair Blue Pure 211i Max Filter Localization Photo Sample

SAMPLE

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for pictures & test results

Compare High-Res
Blueair Blue Signature Large Filter Localization Photo

Filtration Layers 
 

Locked
4 Stage

Activated Carbon 
 

Locked
Sheet
Performance

Particle Filtration Rate 
 

N/A
9.1

Purification Graph  

Blueair Blue Pure 211i Max Purification Graph Sample

SAMPLE

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for pictures & test results

 Preview Graph
Blueair Blue Signature Large Purification Graph

Measured PM1.0 CADR 
 

Lock m³/hr (Lock CFM)
729 m³/hr (429 CFM)

Recommended Room Size @ Max Fan Speed 
 

Lock m² (Lock ft²)
62.2 m² (670 ft²)

Low-Noise Particle Filtration Rate 
 

N/A
8.4

Purification Graph @ ≤ 45dBA  

Blueair Blue Pure 211i Max Purification Graph @ ≤ 45dBA Sample

SAMPLE

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for pictures & test results

 Preview Graph
Blueair Blue Signature Large Purification Graph @ ≤ 45dBA

Measured PM1.0 CADR 
 

Lock m³/hr (Lock CFM)
361 m³/hr (213 CFM)

Fan Speed Used 
 

Locked
Speed 2

Recommended Room Size 
 

Lock m² (Lock ft²)
30.8 m² (332 ft²)

Noise 
 

N/A
8.9

Noise Video  

Blueair Blue Pure 211i Max Noise Video Sample

SAMPLE

JOIN NOW

for videos & test results

Noise @ Lowest Fan Speed 
 

LockdBA
31.2dBA

Noise @ Highest Fan Speed 
 

LockdBA
58.2dBA

Check Price

 
Nordic Fog
Blue Signature Large
SEE PRICE
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Nordic Fog
Blue Signature Large
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Amazon
 
Nordic Fog
Blue Signature Large
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Walmart.com
 
Nordic Fog
Blue Signature Large
SEARCH
Lowes.com
 
Nordic Fog
Blue Signature Large
SEARCH
HomeDepot.com
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Blueair Blue Pure 211i Max

Blueair Blue Signature Large

Comments

  1. Comparison
 • Posted 1 hour ago

Blueair Blue Pure 211i Max vs Blueair Blue Signature Large: Main Discussion

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