Blue Pure 411 Auto Pre-Filter
Blue Pure 411 Auto Pre-Filter
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Blue Pure 411 Auto Pre-Filter
Replacement prefilter Arctic Trail for Blue Pure 411 Auto
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"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
Why choose Blue Pure 211i Max?
Advanced design for superior performance
Monitors PM1, 2.5 & 10, a 360° air intake design, ensuring even airflow and more effcient air leaning & automatically adjusts fan speed based on detected pollutants.
So quiet, you'll wonder if it's even on
Smart features to fit your lifestyle
Sleek customizable Scandinavian design
4 layers of filtration remove 99.97%1 of airborne pollutants
HEPASilentTM 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
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Particle & Carbon
Our original filter. Removes allergens and traps lighthousehold odors from pets, cooking and smoke
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SmokeBlock
2x more activated carbon than our original filter.Removes up to 99.99%3 of wildfire smoke
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AllergenBlock
Extra protection against allergens. Traps andneutralizes dust, pollen and pet dander
Exclusive features in the highly rated Blueair app
Smarter air, customized to you
Choose a fan speed, switch to night mode for undisrupted sleep, or let auto mode adjust for you based on detected pollutants.
Set Schedules
Welcome home technology
Accurate filter lifetime tracking
Independently proven performance
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Free and fast shipping
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30 day home trial
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Extended warranty
Technical Specifications
Dimensions(HxWxD) 22.7x 14.4x14.4
Product Weight 16.2 lb
Energy Consumption 46W
Sound level 23-53dB
Air outlet Top
Recommended room size 674 sq. ft.
Air changes per hour (ACH) 4.8
Clean air delivery rate (CADR) Pollen 450 cfmDust 452 cfmSmoke 435 cfm
Number of filters 1
Speed control options 1-2-3-4-Auto-Night
FAQ
What pollutants does the Blue Pure 211i Max filter out?
What pollutants does the Blue Pure 211i Max filter out?
Our HEPASilent" dual fitration technology removes 9997%' of airborne particles down to 0.1microns, ensuring pollen, cooking odors, smoke, dust, pet dander, mold, chemicals, allergenmatter and even tiny particles such as viruses and bacteria3, are captured with minimal noise
and energy consumption.
What room size is best for the Blue Pure 21li Max?
What room size is best for the Blue Pure 21li Max?
To achieve maximum performance we recommend placing your Blue Pure 211i Max in a room around 674 ft² room so your air purifier can clean the air at the AHAM recommendation of 4 times every 12.5 minutes. The Blue Pure 211i Max will clean a 1,618 ft² space in 30 minutes, and 3,235 ft² in 1 hour.
Use the flexible grid system to create any layout. Each block can be placed in any of the columns.
What are the noise levels of the Blue Pure 211i Max?
What are the noise levels of the Blue Pure 211i Max?
Operates quieter than a whisper on low at 23 db and is no louder than 53 dB on high fan speed.
How often do I need to change the filters?
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 21li Max?
What is the warranty for the Blue Pure 21li Max?
Register your product to extend the 1-year warranty to a 3-year warranty.
Does toggling between the different PM levels (PM1, PM2.5, PM10)on the display change the specific types of pollutants that are filtered out of the air?
Does toggling between the different PM levels (PM1, PM2.5, PM10)on the display change the specific types of pollutants that are filtered out of the air?
While many Blueair units come equipped with a PM2.5 sensor, some models, including Blue Pure 211i Max, Protect 70i, or Classic Pro CP7i, have advanced sensors that measure PM1, PM2.5, and PM10 levels for more precise air quality monitoring. However, the display on these models can only show one of these three particulate matter (PM) values at a time due to the size of the screen. The display can toggle between PM1, PM2.5, and PM10 readings to track the levels of different pollutants in their environment. Switching between these indicators does not affect the air purifier's performance or target a specific pollutant size to remove from the air. The air purifier continuously works to remove particles down to 0.1 micron from the air regardless of which PM indicator is displayed.