Best 2022 Air Purifiers for CADR rating

#1 Blueair Blue Pure 211i Max
4.7

Reviewers praise the high clean-air output, using strong language around the CADR and improved score.

Pros: fan speed options, CADR rating

Cons: true HEPA filter, handle design

#2 Levoit EverestAir
4.7

CADR evidence is strong and consistently tied to large-room capability.

Pros: air purification performance, allergen reduction

Cons: reliability, filter replacement cost

#3 Blueair Blue Pure 311i Max
4.5

CADR and airflow were viewed positively, with reviewers describing the 250 CFM class performance and CADR-to-power ratio as strong.

Pros: dust removal, pollen removal

Cons: child lock, true HEPA filter

#4 Blueair Blue Pure 511
4.2

Experts consider the CADR strong for the price and footprint, though less powerful than larger or smarter Blueair models. It is best understood as small-room performance, not whole-house cleaning.

Pros: sleep mode, customer support

Cons: auto mode performance, air quality sensor accuracy

#5 Alen BreatheSmart 45i
4.1

CADR evidence is positive overall, though some reviewers note stronger or cheaper competitors.

Pros: air quality sensor accuracy, real-time air quality monitoring

Cons: condition on arrival, remote control

#6 Purivortex PX500
4.0

One buyer called the CADR 110 rating acceptable for a small room. No one treated it as suitable for broad whole-home coverage.

Pros: pollen removal, pet dander removal

Cons: filter availability, power consumption

#7 Shark HP102
2.7

Experts viewed CADR and airflow as modest, limiting coverage despite good small-room performance.

Pros: particle removal effectiveness, PM2.5 detection

Cons: durability, aromatherapy feature