Updated October 2026
Data from the official Dyson site.
2026 verdict
Dyson Purifier Humidify+Cool PH03 is the more complete option versus Dyson Purifier Big+Quiet Formaldehyde BP03 in 2026, helped most by filtration and sensors.
It separates itself most clearly on filtration and sensors, while still looking better on its broader overall balance. There is still a case for Dyson Purifier Big+Quiet Formaldehyde BP03, but mainly if rating is what you value most. That makes Dyson Purifier Humidify+Cool PH03 the clearer recommendation in 2026.
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Connectivity
- Wi-Fi 2.4 GHz
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$879.99
$949.99
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| Feature | Dyson Purifier Big+Quiet Formaldehyde BP03 | Dyson Purifier Humidify+Cool PH03 | Winner |
|---|---|---|---|
| Rating | 4.2 | 3.3 | Dyson Purifier Big+Quiet Formaldehyde BP03 |
| Filtration | HEPA Filter, Activated Carbon Filter | HEPA Filter, Activated Carbon Filter, UV-C Light | Dyson Purifier Humidify+Cool PH03 |
| Sensors | PM2.5, TVOC, CO2, Formaldehyde | PM2.5, PM10, TVOC, Temperature, Humidity | Dyson Purifier Humidify+Cool PH03 |
| Warranty | 2 years | 2 years | Tie |
| Connectivity | 2.4 GHz WiFi | None | Tie |
| Integrations | Google Home, Alexa, Home Assistant | Google Home, Alexa, Home Assistant | Tie |
| AHAM Verifide | NO | NO | Tie |
| Auto Mode | YES | YES | Tie |
- + Rating: 4.2
- - Filtration: HEPA Filter, Activated Carbon Filter vs HEPA Filter, Activated Carbon Filter, UV-C Light
- - Sensors: PM2.5, TVOC, CO2, Formaldehyde vs PM2.5, PM10, TVOC, Temperature, Humidity
Winner
7% OFF
$879.99
$949.99
- + Filtration: HEPA Filter, Activated Carbon Filter, UV-C Light
- + Sensors: PM2.5, PM10, TVOC, Temperature, Humidity
- - Rating: 3.3 vs 4.2
Frequently Asked Questions
Which is better overall: Dyson Purifier Big+Quiet Formaldehyde BP03 or Dyson Purifier Humidify+Cool PH03?
Dyson Purifier Humidify+Cool PH03 has the stronger overall profile in this comparison, especially for filtration and sensors.
What is the biggest difference between Dyson Purifier Big+Quiet Formaldehyde BP03 and Dyson Purifier Humidify+Cool PH03?
Rating is one of the clearest differences: Dyson Purifier Big+Quiet Formaldehyde BP03 lists 4.2, while Dyson Purifier Humidify+Cool PH03 lists 3.3.
Who should buy Dyson Purifier Big+Quiet Formaldehyde BP03?
Choose Dyson Purifier Big+Quiet Formaldehyde BP03 if your priority is rating and that matters more than filtration.
Who should buy Dyson Purifier Humidify+Cool PH03?
Choose Dyson Purifier Humidify+Cool PH03 if your priority is filtration and sensors and that matters more than rating.
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