The version that destroys formaldehyde, called the Purifier Cool Formaldehyde TP09, costs $100 more. Dyson says its latest air purifiers, including the TP07 and TP09, not only meet the baseline ...
If you want a more advanced does-it-all option, check out the Dyson Purifier Hot+Cool Formaldehyde HP09 (#3), although be aware you'll need to shell out a fair bit more for that. If you're looking ...