Blueair Blue Pure 511i Max vs Winix 5510

The Winix 5510 takes the overall win, holding a higher owner rating, a longer warranty, broader smart home integrations (it adds Home Assistant alongside Alexa and Google Home) and a larger AHAM Verifide room rating, 392 ft² against 237 ft² on the Blueair Blue Pure 511i Max. The 511i Max answers back with a lower price and a fuller particle sensor set, so the win is not one-sided.

Room size and filtration depth. The Blue Pure 511i Max is rated for a 237 ft² space and relies on HEPASilent filtration with no ionizer, while the Winix 5510 is AHAM Verifide for 392 ft² and adds a PlasmaWave ionizer stage on top of its True HEPA and activated carbon layers. The 511i Max is built for one quiet room, the 5510 for a bigger, busier one.

The Winix 5510 covers more ground, AHAM Verifide at 392 ft² against the Blueair Blue Pure 511i Max's 237 ft², and it also carries a longer warranty, 2 years compared with the 511i Max's 1 year (Blueair extends its coverage to 3 years with product registration).

The Blueair Blue Pure 511i Max reports three particle sizes, PM1, PM2.5 and PM10, while the Winix 5510 only reports PM2.5. Neither model measures VOCs, CO2, temperature or humidity, and both drive an auto mode and an air quality indicator light from whatever they do sense.

Anyone furnishing a bedroom, nursery or small office who wants the quietest possible operation, a full PM1 to PM10 sensor readout and a lower price, and who does not need an ionizer stage or Home Assistant support.

Anyone covering a large living room or open floor plan who wants the larger AHAM Verifide room rating, a deeper filter stack with a switchable PlasmaWave ionizer, a longer warranty and Home Assistant compatibility alongside Alexa and Google Home.