Skip to content
Close
Arrow - Left
Arrow - Right
Free Shipping on Orders +$35
30-Day Home Trial | Free Extended Warranty
  • Not Sure? Take Our Quiz
  • Sale

Your cart

Start shopping to qualify for free shipping!

Filters
Results
Skip to product information

Smart sensing that thinks ahead

3 advanced sensors track your air & automatically adjust

Powerful yet seriously quiet

HEPASilent™ technology delivers faster cleaning with less noise

Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Blue Pure 211i Max - Midnight
Arrow - Left
Arrow - Right
4.6
Rated 4.6 out of 5 stars
4.6 Stars (2,253 Reviews)

Blue Pure 211i Max

Smart HEPASilent™ air purifier for large rooms & open spaces with fast powerful cleaning that automatically adjusts to your air

Great for

Allergens, pets, smoke

Designed for

Open concept, kitchens, living rooms

Select Model
One Time Shipment
  • 1 Air Purifier
  • 1 Particle & Carbon Filter
  • 1 Pre-Filter
  • 1 Replacement Filter
  • Save 15% on every filter
  • Pay when we send it
Select Filter Type

  • Free & fast shipping
  • 30 day home trial
  • Free extended warranty

Big-room cleaning made smarter. Faster, quieter, smarter air purification that keeps your home feeling fresh and more comfortable every day.

  • Quickly cleans 674 ft² every 12.5 minutes & 3,235 ft² in 1 hour
  • Keeps large living spaces feeling fresh fast
  • Automatically adjusts when your air quality changes
  • Easy to control from anywhere
  • Auto Mode keeps cleaning effortless
  • Specialized filters for your needs
  • Accurate filter lifetime tracking
  • Control from anywhere
Customize your purifier

Smart sensing that thinks ahead

3 advanced sensors track your air & automatically adjust

Powerful yet seriously quiet

HEPASilent™ technology delivers faster cleaning with less noise

“On its higher setting, its terrific at removing dust, pollen and smoke...CR members found Blueair air purifiers highly reliable and were quite satisfied with their purchase”

Consumer Reports, Best Air Purifier for Smoke

“The Blue Pure 211i Max aced our tests, and on top of its powerful performance, it stands out for its energy efficiency, quiet operation, user-friendly features, and good looks.”

Wirecutter Best Air Purifiers of 2024

Arrow - Left
Arrow - Right

Why choose Blue Pure 211i Max?

4 layers of filtration remove
99.97%
¹ of airborne pollutants

HEPASilent™ technology combines electrostatic and mechanical filtration to capture tiny airborne pollutants like pollen, dust and smoke, faster* and quieter⁴ than traditional HEPA.

Meet our filters

  • Particle & Carbon

    Our original filter. Removes allergens and traps light household odors from pets, cooking and smoke

  • SmokeBlock

    2x more activated carbon than our original filter. Removes up to 99.99%³ of wildfire smoke

  • AllergenBlock⁵

    Extra protection against allergens. Traps and neutralizes dust, pollen and pet dander

Exclusive features in the
highly rated Blueair app

Independently proven performance

  • Free and fast shipping

  • 30 day home trial

  • Extended warranty

Blue Pure 211i Max - Midnight

Technical Specifications

  • Dimensions(HxWxD)

    22.7 x 14.4 x 14.4

  • Product Weight

    16.2 lb

  • Energy Consumption

    46 W

  • Sound level

    23-53 dB

  • Air outlet

    Top

  • Recommended room size

    674 sq. ft.

  • Air changes per hour (ACH)

    4.8

  • Clean air delivery rate (CADR)

    Pollen 450 cfm
    Dust 452 cfm
    Smoke 435 cfm

  • Number of filters

    1

  • Speed control options

    1 - 2 - 3 - 4 - Auto - Night

FAQ

Our HEPASilent™ dual filtration technology removes 99.97%¹ of airborne particles down to 0.1 microns, ensuring pollen, cooking odors, smoke, dust, pet dander, mold, chemicals, allergen matter and even tiny particles such as viruses and bacteria², are captured with minimal noise and energy consumption.

4.6
Rated 4.6 out of 5 stars
Based on 2,253 reviews
88%would recommend these products
2,253 reviews
  • JS
    Jane S.
    Verified Buyer
    4 minutes ago
    Reviewing
    Blue Pure 211i Max
    Rated 5 out of 5 stars
    Blue Pure 211i Max.

    We love our purifier. I feel I keep a pretty clean house but since we have this I don’t see much dust at all anymore. We keep it under air return in master bedroom area. And I don’t seem to get stuffy nose at all either. We bought due to my spouse clearing his throat a lot. Seems to have improved too.

  • DM
    Dinah M.
    Verified Reviewer
    4 hours ago
    Reviewing
    Blue Pure 311i Max
    Rated 5 out of 5 stars
    Clean air, even with dogs and cooking

    I love this air filter. The air seems cleaner, strong smells dissipate faster, and it just feels healthier inside my house. The filter was fairly easy to put on the machine although a tight fit, and the cover is attractive and stretchy.

  • GA
    GEORGE A.
    Verified Buyer
    Yesterday
    Reviewing
    Blue Pure 211i Max
    Rated 5 out of 5 stars
    GREAT UNITS

    I have bought three of these for my Condo and they are doing an excellent job of keeping air in my UNIT510 pure and clean. I haven't sneezed or had my eyes itch or tear since I have put these marvelous units to work.

  • LC
    Line C.
    Verified Buyer
    5 days ago
    Reviewing
    Blue Pure 211i Max
    Rated 5 out of 5 stars
    J’adore!

    Ce purificateur d’air atteint toutes mes attentes. Maison de fumeurs et réussi à garder l’air fraîche et sans fumée. Ma belle-sœur était très impressionné et a decidé d’en acheter une pareil comme moi. Bravo pour ce produit très efficace.

  • LM
    Louise M.
    Verified Buyer
    1 week ago
    Reviewing
    Blue Pure 211i Max
    Rated 5 out of 5 stars
    Third Blueair in my home

    Easy to setup for the best clean air.

¹ Tested on PM 2.5 up to 90 mins

² Based on ELISA deactivation testing of Pollen (Cry J1), Pet Dander (Fel d1, Can F1), Dust Mite Matter (Der f1) on the filter media in 60 minutes.

³ Compared to standard in-unit filter. Based on removal testing of particles 0.4-0.7 μm in 60min in a 30m3 room. Performance may vary.

⁴ When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration.

⁵ AllergenBlock refers to inanimate allergens pollen, dust and pet dander.

*Comparing CADR performance of Blueair models with mechanical and electrostatic filtration vs same models with only H13 HEPA mechanical filtration.

Note: CADR and room size values have been updated to meet new DOE standards. Website listings reflect the most accurate information. You may notice slight differences versus product packaging during the transition.