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Dyson Purifier Big+Quiet Formaldehyde BP04 vs Find+Follow Purifier Cool

Which Air Purifier Is Better?

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

Products

Dyson Purifier Big+Quiet Formaldehyde BP04
Dyson Find+Follow Purifier Cool

Tested using Methodology v1.3.1

Updated Jul 14, 2026 06:53 PM

SEE PRICE
BestBuy.com

Tested using Methodology v1.3.1

Updated Jul 14, 2026 06:52 PM

SEE PRICE
Dyson
Dyson Purifier Big+Quiet Formaldehyde BP04 Picture

Track

Dyson Find+Follow Purifier Cool Picture

Track

HEPA Certified
Yes
Activated Carbon
Sheet
HEPA Certified
Yes
Activated Carbon
Sheet

Our Verdict

Dyson Purifier Big+Quiet Formaldehyde BP04

Dyson Find+Follow Purifier Cool

The Dyson Purifier Big+Quiet Formaldehyde BP04 is a better air purifier than the Dyson Find+Follow Purifier Cool. The Find+Follow is considerably smaller and can pull double-duty as a cooling fan, but the BP04 simply delivers vastly better overall particle filtration performance, allowing it to improve air quality in much bigger spaces. 

GIFT THIS COMPARISON

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Variants

  • Purifier Big+Quiet Formaldehyde BP03 (Bright Nickel/Prussian Blue)
  • Purifier Big+Quiet Formaldehyde BP04 (Prussian Blue/Gold)
  • Find+Follow Purifier Cool (PC3)

Review

See Dyson Purifier Big+Quiet Formaldehyde BP04 Review
See Dyson Find+Follow Purifier Cool Review
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Check Price

Bright Nickel/Prussian Blue
Purifier Big+Quiet Formaldehyde BP03
SEE PRICE
BestBuy.com
PC3
Find+Follow Purifier Cool
SEE PRICE
Dyson
Prussian Blue/Gold
Purifier Big+Quiet Formaldehyde BP04
SEARCH
Amazon
PC3
Find+Follow Purifier Cool
SEARCH
Amazon
 
PC3
Find+Follow Purifier Cool
SEARCH
Walmart.com
 
PC3
Find+Follow Purifier Cool
SEARCH
Lowes.com
 
PC3
Find+Follow Purifier Cool
SEARCH
HomeDepot.com
 
PC3
Find+Follow Purifier Cool
SEARCH
BestBuy.com

Main Differences for
Pets

Threshold 

0.10

Pets 
 

7.8
5.7

Particle Filtration Rate 
 

7.5
5.5

Noise 
 

8.8
6.4

Full Comparison

Design

Body  

Weight 
 

25.1 lbs (11.4 kg)
10.1 lbs (4.6 kg)

Power Cord Length  

72.8" (185.0 cm)
73.4" (186.4 cm)

Wheels 
 

Yes
No

Footprint 
 

5.0
7.2

Compactness Photo 
 

Compare High-Res
Dyson Purifier Big+Quiet Formaldehyde BP04 Compactness Photo
Compare High-Res
Dyson Find+Follow Purifier Cool Compactness Photo

Width 
 

16.3" (41.5 cm)
8.7" (22.0 cm)

Depth 
 

17.1" (43.5 cm)
8.7" (22.0 cm)

Height 
 

32.7" (83.0 cm)
41.4" (105.2 cm)

Display And Control 
 

Main Controls 
 

Compare High-Res
Dyson Purifier Big+Quiet Formaldehyde BP04 Main Controls
Compare High-Res
Dyson Find+Follow Purifier Cool Main Controls

Alternative Controls 
 

Compare High-Res
Dyson Purifier Big+Quiet Formaldehyde BP04 Alternative Controls
Compare High-Res
Dyson Find+Follow Purifier Cool Alternative Controls

Filter Change Indicator 
 

Yes
Yes

Air Quality Sensor Auto Mode 
 

Yes
Yes

Remote Control 
 

Yes
Yes

App 
 

Yes
Yes

Display On/Off 
 

Dimmable only
Dimmable only

Timer Function 
 

Yes
Yes

Number Of Fan Speeds 
 

10
10

Filter Configuration  

Filter Configuration Photo 
 

Compare High-Res
Dyson Purifier Big+Quiet Formaldehyde BP04 Filter Configuration Photo
Compare High-Res
Dyson Find+Follow Purifier Cool Filter Configuration Photo

Filter Localization Photo 
 

Compare High-Res
Dyson Purifier Big+Quiet Formaldehyde BP04 Filter Localization Photo
Compare High-Res
Dyson Find+Follow Purifier Cool Filter Localization Photo

HEPA Certified 
 

Yes
Yes

Filtration Layers 
 

3 Stage
2 Stage

Activated Carbon 
 

Sheet
Sheet
Performance

Particle Filtration Rate 
 

7.5
5.5

Purification Graph  

 Preview Graph
Dyson Purifier Big+Quiet Formaldehyde BP04 Purification Graph
 Preview Graph
Dyson Find+Follow Purifier Cool Purification Graph
 Compare in Graph Tool

Measured PM1.0 CADR 
 

329 m³/hr (193 CFM)
126 m³/hr (74 CFM)

Recommended Room Size @ Max Fan Speed 
 

28.1 m² (302 ft²)
10.7 m² (116 ft²)

Low-Noise Particle Filtration Rate 
 

8.3
5.4

Purification Graph @ ≤ 45dBA  

 Preview Graph
Dyson Purifier Big+Quiet Formaldehyde BP04 Purification Graph @ ≤ 45dBA
 Preview Graph
Dyson Find+Follow Purifier Cool Purification Graph @ ≤ 45dBA
 Compare in Graph Tool

Measured PM1.0 CADR 
 

329 m³/hr (193 CFM)
91 m³/hr (53 CFM)

Fan Speed Used 
 

Speed 10
Speed 8

Recommended Room Size 
 

28.1 m² (302 ft²)
7.8 m² (83 ft²)

Noise 
 

8.8
6.4

Noise Video  

Noise @ Lowest Fan Speed 
 

33.4dBA
34.7dBA

Noise @ Highest Fan Speed 
 

47.6dBA
52.9dBA

Check Price

Bright Nickel/Prussian Blue
Purifier Big+Quiet Formaldehyde BP03
SEE PRICE
BestBuy.com
PC3
Find+Follow Purifier Cool
SEE PRICE
Dyson
Prussian Blue/Gold
Purifier Big+Quiet Formaldehyde BP04
SEARCH
Amazon
PC3
Find+Follow Purifier Cool
SEARCH
Amazon
 
PC3
Find+Follow Purifier Cool
SEARCH
Walmart.com
 
PC3
Find+Follow Purifier Cool
SEARCH
Lowes.com
 
PC3
Find+Follow Purifier Cool
SEARCH
HomeDepot.com
 
PC3
Find+Follow Purifier Cool
SEARCH
BestBuy.com
Back to Top

Dyson Purifier Big+Quiet Formaldehyde BP04

Dyson Find+Follow Purifier Cool

Comments

  1. Comparison
 • Posted 1 month ago

Dyson Purifier Big+Quiet Formaldehyde BP04 vs Dyson Find+Follow Purifier Cool: Main Discussion

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