Air Purifiers · Head to head

Dyson Purifier Big+Quiet Formaldehyde BP03 vs Levoit Core 400S-P

Full Smart Air Purifiers comparison in 2026

Updated August 2026
Data from Amazon and official Dyson and Levoit sites.
2026 verdict
Levoit Core 400S-P beats Dyson Purifier Big+Quiet Formaldehyde BP03 in 2026, with its clearest edge on price, rating, and integrations. The comparison tilts its way because of price, rating, and integrations, with AHAM verifide keeping it in front. You should still consider Dyson Purifier Big+Quiet Formaldehyde BP03 if sensors matter more than raw overall balance. As a general recommendation, Levoit Core 400S-P comes out on top.
FeatureDyson Purifier Big+Quiet Formaldehyde BP03Levoit Core 400S-PWinner
Price$900.00$181.91Levoit Core 400S-P
Rating4.44.7Levoit Core 400S-P
IntegrationsGoogle Home, AlexaGoogle Home, Alexa, Home AssistantLevoit Core 400S-P
SensorsPM2.5, TVOC, CO2, FormaldehydePM2.5Dyson Purifier Big+Quiet Formaldehyde BP03
AHAM VerifideNOYESLevoit Core 400S-P
Warranty2 years2 yearsTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
FiltrationHEPA Filter, Activated Carbon FilterHEPA Filter, Activated Carbon FilterTie
Auto ModeYESYESTie

Frequently Asked Questions

Which is better overall: Dyson Purifier Big+Quiet Formaldehyde BP03 or Levoit Core 400S-P?

Levoit Core 400S-P has the stronger overall profile in this comparison, especially for price, rating, and integrations.

What is the biggest difference between Dyson Purifier Big+Quiet Formaldehyde BP03 and Levoit Core 400S-P?

Price is one of the clearest differences: Dyson Purifier Big+Quiet Formaldehyde BP03 lists $900.00, while Levoit Core 400S-P lists $181.91.

Which one looks better on price?

Dyson Purifier Big+Quiet Formaldehyde BP03 is listed at $900.00, while Levoit Core 400S-P is listed at $181.91. Levoit Core 400S-P (better spec).

Who should buy Dyson Purifier Big+Quiet Formaldehyde BP03?

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

Who should buy Levoit Core 400S-P?

Choose Levoit Core 400S-P if your priority is price and rating and that matters more than sensors.

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