One of the reasons for comparing the Medify MA-25 and Blueair 411 Auto Air Purifiers is their availability in both the US and EU markets. Additionally, they share a few similar characteristics, such as three fan speeds, impressive performance, similar coverage, and minimalist controls. These air purifiers cover almost identical room sizes. The Medify MA-25 is suitable for rooms of up to 210 sq. ft. (19.5 m2), while the Blueair 411 Auto is intended for slightly smaller rooms of up to 190 sq. ft. (18 m2). They will clean the air 4.8 times per hour in the recommended room sizes.

Air Purifier First