Dyson Purifier Big+Quiet Formaldehyde BP04 vs Rabbit Air A3

The Rabbit Air A3 outperforms the Dyson Purifier Big+Quiet Formaldehyde BP04. The Rabbit Air is a better option for use in larger spaces, thanks to its higher clean air delivery rate, which allows it to lower particle levels to the same level in an equivalently sized room roughly 40% faster. It also has a slightly less obtrusive design, though it's still a little bulky. That being said, the Dyson does give you more granular control over its fan speed, with 10 fan speed settings compared to the Rabbit Air's five. The Dyson also runs much quieter at its highest fan speed.