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Blueair Blue Pure 311i Max Air Purifier

  • The Blue Pure 311i Max is fast, quiet and simply smart. Now with 83% faster cleaning power¹, the Blue Pure 311i Max air purifier quickly cleans a 387sqft large room in about 12.5 min* or up to 929sqft large space in 30min*, on high.

    Blue Pure 311i Max with HEPASilent™ Technology removes 99.97% of airborne particles down to 0.1 microns² such as viruses and bacteria³, while larger particles such as dust, pollen, and smoke are also removed.

    Control 4 fan speeds (Night, 1-3), select auto mode, adjust brightness levels and enable/disable child lock with just two buttons.

    The five-color air quality indicator (AQI) uses a particle sensor to detect pollution. Air quality reading is based on the concentration of fine particles (PM 2.5) in your space.

    Exclusive customizable features via the Blueair app including filter tracking RealTrack technology, Clean Air ETA, and Welcome Home features.

    Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide® Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 250* for fine smoke particles, dust and pollen.


    ¹ Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary.

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

    *On highest fan speed. CADR based on AHAM AC-1. According to AHAM air changes per hour (ACH) is the measure of the outside air volume added to a space divided by the volume of that space over a set amount of time

    • Cleans 387sqft medium room in about 12.5 min*
    • 4 fan speeds (Night, 1-3), and auto mode
    • 5-color AQI with tow button control monitors air pollution (PM2.5)
    • Smart app-enabled with Amazon Alexa voice control
    • Filter Tracking with RealTrack technology
    • Clean Air ETA and Welcome Home Features
    • 5 Scandinavian-inspired customizable fabric pre-filters
    • AHAM Verifide for Performance (CADR)
    • Ozone Safety Standards Certified by CARB
    • Zero Ozone Verified (<5 ppb) by Intertek Sustainability
    • Product Code / SKU – 3539 – UPC 689122023021

    *On highest fan speed. CADR based on AHAM AC-1. According to AHAM air changes per hour (ACH) is the measure of the outside air volume added to a space divided by the volume of that space over a set amount of time

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