#1
Choose the Blue Pure 311i Max for fast particle removal, quiet low-speed use, smart controls, and low running costs. Skip it if you need strong VOC/odor filtration, a true HEPA-only...
Pros: dust removal, pollen removal
Cons: child lock, true HEPA filter
#2
Choose the Blue Pure 511 for quiet, affordable air cleaning in bedrooms, offices, nurseries, or pet spaces. Skip it if you want smart sensors, app control, clearer buttons, or stronger...
Pros: sleep mode, customer support
Cons: auto mode performance, air quality sensor accuracy
#3
Choose the Blueair 211i Max for large-room airflow, quiet everyday use, smart app control, and washable pre-filter convenience. Skip it if true HEPA certification, low replacement-filter costs, or Matter/Apple Home...
Pros: fan speed options, CADR rating
Cons: true HEPA filter, handle design