Blueair Blue Pure 511i Max vs Winix 5520

Winix 5520 has the stronger overall profile in this comparison, especially for rating, warranty, and filtration.

Price is one of the clearest differences: Blueair Blue Pure 511i Max lists $118.99, while Winix 5520 lists $179.99.

Blueair Blue Pure 511i Max is listed at $118.99, while Winix 5520 is listed at $179.99. Blueair Blue Pure 511i Max (better spec).

Choose Blueair Blue Pure 511i Max if your priority is price and sensors and that matters more than rating.

Choose Winix 5520 if your priority is rating and warranty and that matters more than price.