Dyson Purifier Hot+Cool HP2 De-NOx vs Winix 5520

Winix 5520 is the better buy for most homes. It is AHAM Verifide at 253 CFM smoke CADR for 392 sq ft, filters through a washable pre-filter, carbon and True HEPA, matches the 2 year warranty of Dyson Purifier Hot+Cool HP2 De-NOx and costs far less.

Filtration depth versus sensing depth. Winix 5520 stacks a washable pre-filter, carbon and True HEPA with an optional PlasmaWave stage, while Dyson Purifier Hot+Cool HP2 De-NOx adds VOC and formaldehyde sensing, catalytic formaldehyde destruction, and heating plus cooling that the Winix cannot do at all.

Winix 5520. Its fine mesh pre-filter is washable, so hair and coarse dust never reach the paid media, and the unit draws 50 W. Dyson Purifier Hot+Cool HP2 De-NOx has no washable pre-filter, so all capture happens in the replaceable cartridge.

Dyson Purifier Hot+Cool HP2 De-NOx, by a wide margin: Matter, Apple HomeKit, Samsung SmartThings, Alexa and Google Home. Winix 5520 uses the Winix Smart app and supports Alexa only, with no Google Home, HomeKit or Matter.

Buyers who want proven filtration for a bedroom or medium living room at low cost, especially in homes with pets, cooking odors or smoke. The washable pre-filter, verified 392 sq ft rating and light-sensing sleep mode make it easy to live with.

People who need to track gases, not just dust, or who want purification, heating and cooling from one machine. Its formaldehyde and VOC sensors, catalytic filter, LCD readings and Matter plus HomeKit support are what the premium buys.