Blueair Blue Pure 211+

Pros

• +Highest CADR rating in the category at this price point
• +Washable fabric pre-filter doubles as a design element
• +Energy Star certification — the lowest watts-per-CFM in the guide
• +Single-button operation — no app, no menus, no settings
• +Highest CADR in class (350 CFM)

Cons

• −Replacement filter cost roughly $80 per year
• −No air-quality sensor or auto mode
• −Larger physical footprint than smaller HEPA units
• −Premium price reflects flagship positioning