Dyson HEPA Big+Quiet Formaldehyde BP06 vs Dyson Purifier Big+Quiet Formaldehyde BP04/BP03

The Dyson HEPA Big+Quiet Formaldehyde BP06 is effectively a simplified version of the more expensive Dyson Purifier Big+Quiet Formaldehyde BP04/BP03, being intended more for use in commercial or public areas. The BP04/BP03 has 10 fan speed settings to the BP06's two. The BP06 also lacks in-app connectivity, so you can't adjust settings remotely, and it's unable to change its fan speed in real time according to current pollutant levels. Otherwise, all models have the same three-stage HEPA 13 filtration system, though only the BP04 comes bundled with an activated K-Carbon filter, which is advertised to provide additional protection from NO₂ versus their standard activated carbon filter.