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Blueair 311i Max vs 311i+ Max, with smoke CADR, room-size math, filter compatibility, and which model makes sense for bedrooms, offices, smoke, and larger rooms.

A research-based Blueair Blue Pure 311i Max review for buyers comparing CADR, noise, filters, app control, and the 311i Max vs 311i+ Max naming trap.

eero Max 7 in a real home for 3 months. Coverage, speed, app experience, and whether the premium price is justified.