Topic
3 guides.
The 211i Max replaced the Blue Pure 211+, and it is one of the strongest purifiers AHAM lists at this price: 435 cfm of smoke CADR, very low power draw, and a choice of four filters.
The 411i Max is Blueair's small-room purifier: about the airflow of a Levoit Core 300, a quieter low setting, a particle sensor and app, and power draw lower than most lamps on its lowest speed.
Blueair's Classic 605 was a big steel box for large rooms. It is gone from AHAM's directory and from Amazon as a new unit. Here is what owners and shoppers should do instead.
