Blue Pure 311i+ Max + AllergenBlock Filter Bundle

Blue Pure 311i+ Max + AllergenBlock Filter Bundle

Air Purifier, Large Rooms

$125.79 USD$314.48 USD
Clean air for a healthier, happier space

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.

  • Blue Pure 311i+ Max & Blue Pure 311i+ Max AllergenBlock Filter bundle
  • Quickly cleans 525 ft² in 12.5 minutes, 1,260 ft² in 30 minutes, & 2,520 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
  • 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 Technology®
  • Smart home integration
Additional Features
  • Wi-Fi connectivity for remote control Yes
  • On/ off timer trueapp
  • Speed control options 1 - 2 - 3 - Auto - Night
  • Integrated air sensors Yes
Shipping & Warranty
  • Free & fast shipping
  • 30 day home trial
  • Free extended warranty

Why choose Blue Pure 311i+ Max?

  • Wellness in every breath

    Removes 99.97%¹ of tiny airborne particles to quickly transform your bedrooms, playrooms, or basements into a personal wellness retreat where you can thrive.

  • Whisper-Quiet Sleep Mode

    With ultra-quiet performance, you’ll enjoy restful nights and wake up refreshed, creating the perfect balance for your healthy lifestyle.

  • One-Touch Control

    Simple and intuitive, the one-touch control makes it easy to adjust settings without any hassle.

  • Stylish Scandinavian Design

    Modern, minimalist design that blends seamlessly into any bedroom or office while delivering clean, fresh air.

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

“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

1 / 2

Exclusive features in the Blueair app

  • Smarter air, customized to you

    Choose your fan speed, set to auto or night mode and display lock your settings.

  • Schedules to fit your lifestyle

    Tailor your air purifier’s settings to your daily routine with customized schedules. Set your preferred times for enhanced air purification, so you can wake up to fresh air, keep your home clean during peak hours, and save energy when you're away.

  • Welcome Home Technology

    Enjoy the convenience of the of your air purifier activating you are a few miles away from home.

  • RealTrack Technology®

    Tracks your filter lifetime based on pollutant levels and alerts you when it’s time to replace your filter.

Independently proven performance

Proud to be a Certified B Corp

As a B Corp, we’re part of a global community of businesses that meet high standards of social and environmental impact.

  • Free and fast shipping

  • 30 day home trial

  • Extended warranty

Blue Pure 311i+ Max + AllergenBlock Filter Bundle

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

    525 ft²

  • Air changes per hour (ACH)

    4.8

  • Clean air delivery rate (CADR)

    Pollen 446 cfm
    Dust 370 cfm
    Smoke 339 cfm

  • Number of filters

    1

  • Speed control options

    1 - 2 - 3 - Auto - Night

FAQ

What pollutants does the Blue Pure 311i+ Max filter out?

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.

What room size is best for the Blue Pure 311i+ Max?

To achieve maximum performance we recommend placing your Blue Pure 311i+ Max in a room around 525 ft²room so your air purifier can clean the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Pure 311i+ Max will clean a 1,260 ft²space in 30 minutes, and 2,520 ft² in 1 hour

What are the noise levels of the Blue Pure 311i+ Max?

Operates quieter than a whisper on low at 25 db and is no louder than 50 dB on high fan speed.

How often do I need to change the filters?

Your filter will last up to 9 months thanks to our proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.


When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you. Alternatively, connect to the Blueair app to receive an alert and easily re-order at the touch of a button.

What is the warranty for the Blue Pure 311i+ Max?

Register your product to extend the 1-year warranty to a 3-year warranty.

Product reviews from Blueair

Reviews collected on the original Blueair website.

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
5
Rated out of 5 stars
2
Total 5 star reviews: 2
4
Rated out of 5 stars
0
Total 4 star reviews: 0
3
Rated out of 5 stars
0
Total 3 star reviews: 0
2
Rated out of 5 stars
0
Total 2 star reviews: 0
1
Rated out of 5 stars
0
Total 1 star reviews: 0
100%would recommend this product
2 reviews
Sort
  • RD
    Rob D.
    Verified Reviewer
    49 seconds ago
    Rated 5 out of 5 stars
    Blueair 311i Max - nice air purifier and GREAT customer support!

    I have been using my Blueair 311i Max daily for the past year and a half with great results. I recently ran into an issue where the unit would immediately turn itself off after turning on. After using Blueair customer support online and talking to Alina, I was able to get my product replaced under the warranty and shipped to my house within 5 days! It was such a great experience to have a customer service department that actually listened to what happened to the product and then follow through to make things right.

    Thank you Alina with Blueair!

    Was this helpful?
  • P
    PamF
    10 months ago
    Rated 5 out of 5 stars
    Whisper Quiet

    I have an over-active nervous system, such that I rarely open my windows. This air purifier is whisper quiet. It also works as intended.

    Was this helpful?
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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.

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