Dyson Purifier Big+Quiet Formaldehyde BP03 vs Dyson Purifier Hot+Cool HP2 De-NOx

Dyson Purifier Hot+Cool HP2 De-NOx is the better all-round choice. It costs less than Dyson Purifier Big+Quiet Formaldehyde BP03, adds Matter, Apple HomeKit and SmartThings support, and works as a heater and cooling fan on top of purifying, while matching the BP03's sealed H13 filtration and formaldehyde destruction.

Filter life and CO2 sensing versus versatility. Dyson Purifier Big+Quiet Formaldehyde BP03 has a filter rated for up to 5 years and is the only one of the two that measures CO2, while Dyson Purifier Hot+Cool HP2 De-NOx is a normal-sized tower that also heats, cools and oscillates through 350 degrees.

Only Dyson Purifier Big+Quiet Formaldehyde BP03. It senses PM2.5, VOCs, formaldehyde and CO2. Dyson Purifier Hot+Cool HP2 De-NOx swaps CO2 for a temperature sensor, since it needs one to run its heating and cooling modes.

Dyson Purifier Hot+Cool HP2 De-NOx is Matter certified and supports Apple HomeKit and Samsung SmartThings alongside Alexa and Google Home. Dyson Purifier Big+Quiet Formaldehyde BP03 is limited to the MyDyson app with Alexa and Google Home.

Owners of open-plan living areas, studios or large offices. Its long-throw airflow, projected over 32 feet, CO2 readings and 5 year filter life suit a big room where you want to fit the filter once and forget it.

Anyone who wants one machine for every season and a purifier that slots natively into any ecosystem. Heating, cooling, oscillation, Matter, HomeKit and SmartThings support, all at a lower price than the BP03, make it the more practical Dyson for a standard room.