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  1. Home
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Windmill Air Purifier vs Blueair Blue Signature Small

Which Air Purifier Is Better?

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

Products

Windmill Air Purifier 
early access
Blueair Blue Signature Small

Tested using Methodology v1.3.1

Updated Aug 10, 2026 04:29 PM

This review is in Early access

SEE PRICE
Amazon

Tested using Methodology v1.3.1

Updated Jul 17, 2026 03:38 PM

SEE PRICE
Amazon
Windmill Air Purifier Picture

Track

Blueair Blue Signature Small Picture

Track

HEPA Certified
No
Activated Carbon
Sheet
HEPA Certified
No
Activated Carbon
Sheet

Our Verdict

Windmill Air Purifier

Blueair Blue Signature Small

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

GIFT THIS COMPARISON

0 

Variants

  • Air Purifier (Navy)
  • Air Purifier (Sand)
  • Blue Signature Small (Gray)

Review

See Windmill Air Purifier Review
See Blueair Blue Signature Small Review
0 
0 

Check Price

Navy
Air Purifier
SEE PRICE
Amazon
Gray
Blue Signature Small
SEE PRICE
Amazon
Sand
Air Purifier
SEE PRICE
HomeDepot.com
Gray
Blue Signature Small
SEARCH
Walmart.com
White
Air Purifier
SEE PRICE
Amazon
Gray
Blue Signature Small
SEARCH
Lowes.com
 
Gray
Blue Signature Small
SEARCH
HomeDepot.com
 
Gray
Blue Signature Small
SEARCH
BestBuy.com
 
Gray
Blue Signature Small
SEARCH
Blueair

Main Differences for
Pets

Threshold 

0.10

Pets 
 

0.0
7.6
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Full Comparison

Design

Body  

Weight 
 

Lock lbs (Lock kg)
5.7 lbs (2.6 kg)

Power Cord Length  

Lock" (Lock cm)
74.0" (188.0 cm)

Wheels 
 

Locked
No

Footprint 
 

N/A
7.6

Compactness Photo  

Windmill Air Purifier Compactness Photo Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Small Compactness Photo

Width 
 

Lock" (Lock cm)
9.4" (24.0 cm)

Depth 
 

Lock" (Lock cm)
9.5" (24.1 cm)

Height 
 

Lock" (Lock cm)
13.8" (35.1 cm)

Display And Control 
 

Main Controls  

Windmill Air Purifier Main Controls Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Small Main Controls

Alternative Controls  

Windmill Air Purifier Alternative Controls Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Small 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  

Windmill Air Purifier Filter Configuration Photo Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Small Filter Configuration Photo

Filter Localization Photo  

Windmill Air Purifier Filter Localization Photo Sample

SAMPLE

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for pictures & test results

Blueair Blue Signature Small Filter Localization Photo

HEPA Certified 
 

Locked
No

Filtration Layers 
 

Locked
4 Stage

Activated Carbon 
 

Locked
Sheet
Performance

Particle Filtration Rate 
 

N/A
7.2

Purification Graph  

Windmill Air Purifier Purification Graph Sample

SAMPLE

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for pictures & test results

 Preview Graph
Blueair Blue Signature Small Purification Graph

Measured PM1.0 CADR 
 

Lock m³/hr (Lock CFM)
290 m³/hr (171 CFM)

Recommended Room Size @ Max Fan Speed 
 

Lock m² (Lock ft²)
24.7 m² (266 ft²)

Low-Noise Particle Filtration Rate 
 

N/A
7.1

Purification Graph @ ≤ 45dBA  

Windmill Air Purifier Purification Graph @ ≤ 45dBA Sample

SAMPLE

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for pictures & test results

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

Measured PM1.0 CADR 
 

Lock m³/hr (Lock CFM)
170 m³/hr (100 CFM)

Fan Speed Used 
 

Locked
Speed 3

Recommended Room Size 
 

Lock m² (Lock ft²)
14.5 m² (156 ft²)

Noise 
 

N/A
9.2

Noise Video  

Windmill Air Purifier Noise Video Sample

SAMPLE

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for videos & test results

Noise @ Lowest Fan Speed 
 

LockdBA
30.6dBA

Noise @ Highest Fan Speed 
 

LockdBA
49.6dBA

Check Price

Navy
Air Purifier
SEE PRICE
Amazon
Gray
Blue Signature Small
SEE PRICE
Amazon
Sand
Air Purifier
SEE PRICE
HomeDepot.com
Gray
Blue Signature Small
SEARCH
Walmart.com
White
Air Purifier
SEE PRICE
Amazon
Gray
Blue Signature Small
SEARCH
Lowes.com
 
Gray
Blue Signature Small
SEARCH
HomeDepot.com
 
Gray
Blue Signature Small
SEARCH
BestBuy.com
 
Gray
Blue Signature Small
SEARCH
Blueair
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Windmill Air Purifier

Blueair Blue Signature Small

Comments

  1. Comparison
 • Posted 4 hours ago

Windmill Air Purifier vs Blueair Blue Signature Small: Main Discussion

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