Blueair Blue Pure 211i Max Air Purifier Review

★ 4.4 / 5

$349.00

Specification-led overview of the Blueair Blue Pure 211i Max Air Purifier. Large room / smart. Amazon US listing averages 4.4/5 across 3,623 ratings.

Pros

+CADR: 435 smoke / 452 dust / 450 pollen CFM
+Recommended room coverage: 674 sq ft at 4.8 ACH
+Filtration: HEPASilent particle and carbon filter with washable pre-filter
+Filter lifespan: Up to 9 months
+Replacement filter cost: $69.99 (genuine F2MAX particle and carbon filter)

Cons

−Some specification fields remain model-dependent; confirm the exact variant and bundle before buying.

Key Specifications

positioning	Large room / smart
air quality sensors	PM or particulate sensor on sensor-equipped variants
app control	Yes (Blueair app, Alexa, Google Home)
auto mode	Yes on smart/sensor variants; otherwise no
cadr	435 smoke / 452 dust / 450 pollen CFM
filter lifespan	Typically 6-12 months; follow filter indicator
filtration technology	Pre-filter + particulate filter + activated carbon (variant-dependent)
noise	23-53 dB
power consumption	Model-specific; ENERGY STAR or manufacturer rating where applicable
recommended room area	674 sq ft at 4.8 ACH
replacement filter cost	Varied by model; verify current genuine replacement

Our Experience

This review summarizes publicly documented information for the Blueair Blue Pure 211i Max Air Purifier. Catalog positioning: Large room / smart. Amazon US detail page verified 2026-09-22; exact model and variant matched to ASIN B0BN2MGV5H. Positioning: Large room / smart. On Amazon US, the matched listing (ASIN B0BN2MGV5H) shows an average rating of 4.4 out of 5 across 3,623 global ratings at the time this review was compiled. Documented specifications for this model include CADR: 435 smoke / 452 dust / 450 pollen CFM; Recommended room coverage: 674 sq ft at 4.8 ACH; Filtration: HEPASilent particle and carbon filter with washable pre-filter; Filter lifespan: Up to 9 months; Replacement filter cost: $69.99 (genuine F2MAX particle and carbon filter); Noise level: 23-53 dB. Additional listed specs cover Power consumption: 46 W; Auto mode: Yes. Based on the specification set above, this model is best considered for Households that need large room / smart with the listed CADR, filtration, and control features. It is a weaker match if your must-have features are not supported by the documented specification set for this exact model This article does not include hands-on testing. Ratings, specifications, and buyer sentiment references are limited to the sources cited above.