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Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
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Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
Blue Pure 311i+ Max
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Blue Pure 311i+ Max

Air Purifier, Large Rooms

Blue Pure 311i+ Max is designed with sensitive groups in mind. Equipped with advanced HEPASilent Dual filtration technology that removes airborne allergens, dust, and asthma triggers.

  • Quickly cleans 465 ft² in 12.5 minutes, 1,000 ft² in 30 minutes, & 2,000 ft² in 1 hour.
  • Automatically detects and quickly removes pollutants such as dander, pollen, dust mite matter allergen and more.
  • Compact with 360-degree air intake, so you can place it anywhere
  • RealTrack in-app filter monitoring accurately tracks filter lifetime based on usage and pollutant levels.Variety of washable pre-filter colors designed to blend seamlessly in your home
  • Variety of washable pre-filter colors designed to blend seamlessly in your home
  • Perfect for kitchens or living rooms
  • Place anywhere with 360˚ design
  • Automatically Adjust Fan Speed
  • Instant air
quality readings
  • PM 2.5 pollutant tracking
  • App & Wifi connectivity
  • RealTrack filter monitoring
  • Smart home integration
  • Wi-Fi connectivity for remote control Yes
  • On/ off timer No
  • Speed control options 1 - 2 - 3 - Auto - Night
  • Integrated air sensors Yes

“I recommend Blueair air purifiers to my patients because of their strong performance and their commitment to third party testing, which gives me peace of mind that the airborne particles that commonly exacerbate allergy and asthma symptoms are being captured*”

Dr. Priya Bansal

“Blueair's 311i+ Max was the best at capturing the full range of contaminants floating through the air in a typical home. Its advanced multi-level filtration captures contaminants of all sizes — not just dander and pet hair, but also cooking fumes, dust mites and pollen.”

Best Overall Air Purifier

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Why choose Blue Pure 311i+ Max?

5 layers of filtration remove
99.97%²
of airborne pollutants

HEPASilent™ technology combines electrostatic and mechanical filtration to capture tiny airborne pollutants like pollen, dust and smoke, faster³ 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% of wildfire smoke

  • AllergenBlock

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

Exclusive features in the Blueair app

Independently proven performance

  • Free and fast shipping

  • 60 day home trial

  • Free extended warranty

Blue Pure 311i+ Max

Technical Specifications

  • Dimensions(HxWxD)

    21" X 12.5" X 12.5"

  • Product Weight

    7.9 lb

  • Energy Consumption

    38 W

  • Sound level

    23-50 dB

  • Air outlet

    Top

  • Recommended room size

    465 ft²

  • Air changes per hour (ACH)

    4.8

  • Clean air delivery rate (CADR)

    Pollen 300 cfm
    Dust 300 cfm
    Smoke 300 cfm

  • Number of filters

    1

  • Speed control options

    1 - 2 - 3 - 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.

¹ Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary.
Based on AHAM maximum allowable certified rating which may vary from the AHAM seal claimed valued.

² Tested on PM 2.5, pollen allergen (Cry j1), cat allergen (Def f1), fungal allergen (Alt a1), dust mite allergen (Fel d1). Performance may vary across models.

³ Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.

⁴ Tested on TVOC, sulfure dioxide, nitrogen dioxide. Deodorization tested on ammonia, acetaldehyde, acetic acid.