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Blueair Blue Signature Small vs Blue Signature Large

Which Air Purifier Is Better?

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

Products

Blueair Blue Signature Small 
early access
Blueair Blue Signature Large

Tested using Methodology v1.3

Updated Jun 23, 2026 02:28 PM

This review is in Early access

SEE PRICE
Amazon

Tested using Methodology v1.3

Updated Jun 30, 2026 08:03 PM

SEE PRICE
BestBuy.com
Blueair Blue Signature Small Picture

Track

Blueair Blue Signature Large Picture

Track

Activated Carbon
Sheet
Activated Carbon
Sheet
  1. Recommended in 5 articles:
  2. Air Purifiers
  3. Pets
  4. Mold
  5. 2

Our Verdict

Blueair Blue Signature Small

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 Small (Gray)
  • Blue Signature Small (New York Knicks Blue)
  • Blue Signature Large (Nordic Fog)

Review

See Blueair Blue Signature Small Review
See Blueair Blue Signature Large Review
0 
0 

Check Price

Gray
Blue Signature Small
SEE PRICE
Amazon
Nordic Fog
Blue Signature Large
SEE PRICE
BestBuy.com
New York Knicks Blue
Blue Signature Small
SEE PRICE
Amazon
Nordic Fog
Blue Signature Large
SEE PRICE
Blueair
 
Nordic Fog
Blue Signature Large
SEE PRICE
Amazon
 
Nordic Fog
Blue Signature Large
SEARCH
Walmart.com
 
Nordic Fog
Blue Signature Large
SEARCH
Lowes.com
 
Nordic Fog
Blue Signature Large
SEARCH
HomeDepot.com

Main Differences for
Pets

Threshold 

0.10

Pets 
 

0.0
9.1
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Full Comparison

Design

Body  

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

Footprint 
 

N/A
6.0

Compactness Photo  

Blueair Blue Signature Small Compactness Photo Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Large Compactness Photo

Width 
 

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

Depth 
 

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

Height 
 

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

Display And Control 
 

Main Controls  

Blueair Blue Signature Small Main Controls Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Large Main Controls

Alternative Controls  

Blueair Blue Signature Small Alternative Controls Sample

SAMPLE

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for pictures & test results

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 Signature Small Filter Configuration Photo Sample

SAMPLE

Join Now

for pictures & test results

Blueair Blue Signature Large Filter Configuration Photo

Filter Localization Photo  

Blueair Blue Signature Small Filter Localization Photo Sample

SAMPLE

Join Now

for pictures & test results

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 Signature Small 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 Signature Small 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 Signature Small 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

Gray
Blue Signature Small
SEE PRICE
Amazon
Nordic Fog
Blue Signature Large
SEE PRICE
BestBuy.com
New York Knicks Blue
Blue Signature Small
SEE PRICE
Amazon
Nordic Fog
Blue Signature Large
SEE PRICE
Blueair
 
Nordic Fog
Blue Signature Large
SEE PRICE
Amazon
 
Nordic Fog
Blue Signature Large
SEARCH
Walmart.com
 
Nordic Fog
Blue Signature Large
SEARCH
Lowes.com
 
Nordic Fog
Blue Signature Large
SEARCH
HomeDepot.com
Back to Top

Blueair Blue Signature Small

Blueair Blue Signature Large

Comments

  1. Comparison
 • Posted 9 hours ago

Blueair Blue Signature Small vs Blueair Blue Signature Large: Main Discussion

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