Blueair Blue Pure 511i Max vs Winix 5530

The newest Winix trades away some smart home polish for filtration depth, and on balance the Winix 5530 is the stronger air purifier against the Blueair Blue Pure 511i Max, backed by a higher AHAM Verifide CADR, a longer 2 year warranty against 1 year, and a certified True HEPA filter with a switchable PlasmaWave ionizer layered on top of a washable pre-filter. The Blue Pure 511i Max leans on better-documented smart home support instead, confirmed Google Home and Alexa integration where the 5530's Google Home and Home Assistant status are both unconfirmed, plus the more detailed sensor suite, reading PM1, PM2.5 and PM10 separately rather than PM2.5 alone. It is also the more affordable of the two and draws far less power, 17 W against the 5530's 45 W, though the Winix is rated quieter at its lowest setting. Both connect over 2.4GHz Wi-Fi only, and neither reaches Apple HomeKit, SmartThings or Matter. Pick the Winix 5530 for certified filtration and a longer warranty, or the Blueair Blue Pure 511i Max for stronger particle sensing, lower power draw and a lower price.