Air Purifiers · Head to head

Dyson Purifier Big+Quiet Formaldehyde BP03 vs Winix 5520

Full Smart Air Purifiers comparison in 2026

Updated August 2026
Data from Amazon and official Dyson and Winix sites.
2026 verdict
Winix 5520 edges out Dyson Purifier Big+Quiet Formaldehyde BP03 in 2026, led by price, rating, and filtration. Its strongest advantages show up in price, rating, and filtration, with AHAM verifide helping widen the gap. Dyson Purifier Big+Quiet Formaldehyde BP03 can still be the right pick, but only if integrations and sensors outweigh the wider strengths of Winix 5520. In practical terms, Winix 5520 is the easier product to recommend.
vs
FeatureDyson Purifier Big+Quiet Formaldehyde BP03Winix 5520Winner
Price$900.00$179.99Winix 5520
Rating4.44.6Winix 5520
IntegrationsGoogle Home, AlexaAlexaDyson Purifier Big+Quiet Formaldehyde BP03
FiltrationHEPA Filter, Activated Carbon FilterHEPA Filter, Activated Carbon Filter, Washable Pre-Filter, IonizerWinix 5520
SensorsPM2.5, TVOC, CO2, FormaldehydePM2.5Dyson Purifier Big+Quiet Formaldehyde BP03
AHAM VerifideNOYESWinix 5520
Warranty2 years2 yearsTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Auto ModeYESYESTie
Winner
Winix

Winix 5520

$179.99
Buy on Amazon USA
  • + Price: $179.99
  • + Rating: 4.6
  • + Filtration: HEPA Filter, Activated Carbon Filter, Washable Pre-Filter, Ionizer
  • - Integrations: Alexa vs Google Home, Alexa
  • - Sensors: PM2.5 vs PM2.5, TVOC, CO2, Formaldehyde

Frequently Asked Questions

Which is better overall: Dyson Purifier Big+Quiet Formaldehyde BP03 or Winix 5520?

Winix 5520 has the stronger overall profile in this comparison, especially for price, rating, and filtration.

What is the biggest difference between Dyson Purifier Big+Quiet Formaldehyde BP03 and Winix 5520?

Price is one of the clearest differences: Dyson Purifier Big+Quiet Formaldehyde BP03 lists $900.00, while Winix 5520 lists $179.99.

Which one looks better on price?

Dyson Purifier Big+Quiet Formaldehyde BP03 is listed at $900.00, while Winix 5520 is listed at $179.99. Winix 5520 (better spec).

Who should buy Dyson Purifier Big+Quiet Formaldehyde BP03?

Choose Dyson Purifier Big+Quiet Formaldehyde BP03 if your priority is integrations and sensors and that matters more than price.

Who should buy Winix 5520?

Choose Winix 5520 if your priority is price and rating and that matters more than integrations.

More Air Purifiers

Top Air Purifiers to compare next

Compare smart air purifiers by CADR, coverage area, HEPA filtration, air quality sensors, noise level, integrations and auto mode.

Compare Air Purifiers
Dyson

More Dyson products

A sharper look at other Dyson products worth comparing.

Explore Dyson
Winix

More Winix products

A sharper look at other Winix products worth comparing.

Explore Winix
Stay in the loop

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search