Blueair Blue Pure 211i Max vs Medify MA-40
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Blueair Blue Pure 211i Max uses HEPASilent technology to capture 99.97% of airborne particles as small as 0.1 µm, making it ideal for allergy sufferers and homes with pets. Its large‑room coverage of up to 540 sq ft ensures clean air throughout open‑plan living spaces. With an intuitive auto mode, the unit continuously monitors air quality and adjusts fan speed for optimal performance, while the washable pre‑filter captures coarse dust and extends filter life. Wi‑Fi connectivity lets you control the purifier via the Blueair Friend app, set schedules, and receive real‑time air‑quality updates.
The Medify MA-40 is a tower air purifier built around an H13 HEPA filter, a tighter grade than the H11 media used in many budget units, paired with a carbon layer for odors and a mesh pre-filter for hair and large debris. It is designed around airflow: the unit moves a lot of air for its size, which is how it covers medium to large rooms without a floor-standing chassis. Controls are a simple touch panel on the top of the unit with fan speed, a timer, a child lock and a filter-replacement indicator. The front is a tempered glass panel, which makes it look less like an appliance than most purifiers in its price range. There is no air-quality sensor or true auto mode on the base model, so fan speed is set manually rather than driven by measured particulate levels.
- High CADR for large‑room coverage
- Auto mode optimizes performance without user intervention
- Washable pre‑filter reduces ongoing filter costs
- Smart app control and real‑time air‑quality data
- H13-grade HEPA at a price where H11 is more common
- Strong airflow for the footprint, so it clears medium and large rooms quickly
- Child lock and filter-change indicator are genuinely useful and often omitted at this price
- Glass front panel looks better than typical plastic purifier housings
- Main filter replacement can be pricey
- No built‑in ionizer for additional odor control
- Limited color options
- No air-quality sensor or true auto mode on the base model, so speed is set by hand
- Noticeably loud on the top fan speed
- Carbon layer is thin compared to dedicated carbon purifiers, so heavy odor loads outrun it
More alternatives & similar tools
Alternatives to Blueair Blue Pure 211i Max
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Large-room smart HEPA purifier with swappable filter types for specific air problems.
Alternatives to Medify MA-40
View all →Large-room smart HEPA purifier with swappable filter types for specific air problems.
HEPASilent purifier for large rooms with auto mode and washable pre‑filters.
The Verdict
AI-generated from listing dataThe Medify MA-40 offers strong airflow and H13 HEPA at a lower price point but lacks auto sensing, while the Blueair Blue Pure 211i Max adds auto mode, Wi‑Fi control, and larger room coverage at a higher cost.
Key differences
- •H13 vs HEPASilent filtration (MA‑40 uses H13 HEPA, Blue Pure uses dual‑filter HEPASilent)
- •Auto air‑quality sensing present only on Blue Pure
- •Wi‑Fi smart connectivity only on Blue Pure
- •Room coverage: medium (MA‑40) vs large up to 540 sq ft (Blue Pure)
- •Noise: MA‑40 louder on high speed; Blue Pure as low as 31 dB on low setting
Room Coverage
Blue Pure covers up to 540 sq ft (large rooms); MA‑40 is described for medium rooms only.
Filtration Grade
MA‑40 uses H13‑grade HEPA, a higher capture efficiency than the unspecified HEPASilent rating of Blue Pure.
Smart Features
Blue Pure includes Wi‑Fi app control and auto AQI sensing; MA‑40 has no smart connectivity.
Noise Level
Blue Pure operates at 31 dB on its lowest setting; MA‑40 is noted as noticeably loud at top speed.
Price & Value
MA‑40 price not listed but is implied lower; Blue Pure MSRP is $599, making MA‑40 the cheaper option.
Warranty
Blue Pure offers a 5‑year warranty; MA‑40 warranty not specified.
Maintenance Ease
Both have washable pre‑filters and filter‑change indicators; no clear advantage for either.
Choose Blueair Blue Pure 211i Max if…
Buyers with large living spaces who want auto‑mode, smart app control, and quieter operation despite higher cost.
Choose Medify MA-40 if…
Buyers needing strong H13 HEPA filtration for medium rooms and preferring a lower‑cost, simple unit.
Common questions
Which unit is cheaper?
MA‑40’s price isn’t disclosed but is positioned as lower‑cost than Blue Pure’s $599 MSRP.
Can either unit automatically adjust fan speed?
Only the Blue Pure 211i Max has auto mode that measures indoor air quality and adjusts speed.
Do both units have washable pre‑filters?
Yes, both feature washable pre‑filters that extend filter life and simplify maintenance.