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AirPurify

BLUEAIR Blue Pure 311i Max vs Medify MA-40

Side-by-side comparison based on published product information. Check Amazon for current price and availability.

How we evaluate products

We compare published manufacturer specifications, manuals, support policies, and relevant public guidance. We do not present unpublished laboratory or in-home measurements as our own testing.

Features and services can change, so confirm current details with the manufacturer before buying. Affiliate commissions do not determine our editorial criteria.

Use the feature table below to match published specifications to your room, filtration, and noise requirements. We do not assign an overall score without retained independent test evidence.
BLUEAIR Blue Pure 311i Max

BLUEAIR Blue Pure 311i Max

BLUEAIR

Check Amazon for the current price

Check price on Amazon →Read full review
Medify MA-40

Medify MA-40

Medify

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Read full review

Feature comparison

FeatureBLUEAIR Blue Pure 311i MaxMedify MA-40
Coverage439 sq ft (4.8 ACH)373 sq ft (4.8 ACH, AHAM Verifide)
CADR283 / 314 / 365 CFM (Smoke / Dust / Pollen)239 / 231 / 240 CFM (Smoke / Dust / Pollen)
Filter typeHEPASilent dual filtration (mechanical + electrostatic) with combined particle + carbon filter3-stage pre-filter + H13 True HEPA + activated carbon composite
Noise level23-50 dB (rated)40-53 dB (rated); up to 66 dB measured by HouseFresh
Weight7.8 lbs17.5 lbs
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