Blueair 211 vs 411

Blueair 211 vs 411- Which Air Purifier is Right for You?

Blue Air has been known to be one of the best around. If you’re considering buying a Blue Air air purifier, there are two models you’ll want to consider: the Blueair 211 vs 411. These models are excellent choices, but they have some differences that may make one better suited to your home than the other. The key differences between these two air purifiers are their size, shape, filter types, and filter replacement schedules. By understanding what each model offers, you can more easily pick the one that best fits your home environment and your preferences.

Air purifiers are effective in improving the air quality in your home and office. They eliminate dust, pollen, pet dander, bacteria, and other particles that can cause allergies or other health issues. Blue Air makes several different models of air purifiers that each provide their unique level of filtration, so it’s essential to know which one will work best for you and your family before you purchase.

Our Comparison Table

Blue Air Purifier 211

Blue Air Purifier 211

  • An activated carbon filter reduces gas emissions and pesky smells from pets, smoking, cooking fires, and more.
  • Includes machine has washable pre-filters in diva blue and dark shadow colors.

Blue Air purifier 411

Blue Air purifier 411

  • In line with current real-time particle conditions, the setting adjusts automatically by the particle sensor to maintain a comfortable home environment.
  • HEPASilent and Carbon filter technology can remove about 99.97 airborne particles.

Which PurifierPurifier is best? Blueair 211 vs 411

Which air purifier is best for you? Both models, Blueair 211 vs 411, are excellent at removing germs, dust, pollen, pet dander, smoke, and other harmful particles from your home’s indoor air. 

Knowing your options before you purchase can save you time, money, frustration, and headaches. It’s essential to do your research when thinking about buying an air purifier. 

And if you’re thinking about buying one of Blueair’s purifiers, there are several things to consider—including which model is best for your situation. Here is an in-deep look at what each model has to offer, along with a breakdown of their similarities and differences. The below content may be helpful for deciding which unit suits you best!

1- Blue Air Purifier 211

Blue Air Purifier 211
  • Brand      Blueair
  • Size          13 x 13 x 20.4
  • Weight    13 Pounds
  • Color        White

This light, efficient, color-coordinated, high-performance air purifier lets you have it your way with a convenient button-operated system and customizable filter colors. You have to earn its Verifide® rating; this air purifier has been independently evaluated and tested by third-party groups, such as AHAM, for performance against pollutants like fine smoke, pollen, and dust. In the categories of smoke, pollen, and dust, the Clean Air Delivery Rate (CADR) is 350 cfm.

 It is recommended for large rooms such as large living rooms, family rooms & playrooms with a 360° air intake to completely filter room air about every 12 minutes (5x an hour at 540 ft2) at the highest speed.


 • An activated carbon filter reduces gas emissions and pesky smells from pets, smoking, cooking fires, and more.
• Includes machine has washable pre-filters in diva blue and dark shadow colors.
• The noise level is low, about 31 dB at slow speed and 56 dB at high speed.
• Energy consumption is about 30 – 61 watts 

  • One-touch control
  • Cover large area
  • Low noise level
  • Low power consumption 
  • Washable filters
  • Not automatic

2- Blue Air purifier 411

Blue Air purifier 411
  • Brand       Blueair
  • Size          7.9 x 7.9 x 16.7
  • Weight     5.84 Pounds
  • Color         White

The Blueair Blue Pure 411 is a reliable air purifier that’s perfect for smaller spaces. For those with allergies or just concerned about dust and mold, it’s a sensible option. The product has a washable pre-filter and includes HEPA filtration to remove pollutants from your air. It also comes with an auto mode setting and LED air quality display. This unit does not come with ionizers or UV lights to further purify your air, but some may find these features unnecessary for their needs.

They are physically tested for performance by the AHAM Verifide® program for a Clean Air Delivery Rate (CADR) of 123 for fine smoke particles, 96 for NULL particles, and 107 for NULL particles. Best for small rooms like nurseries, guest bedrooms, and home offices with a 360° air intake to filter room air every 12.5 minutes (about 4.8x an hour at 190 ft2) on high.


 • Recommend it for small bedrooms, nurseries, or offices between 110-170 square feet; it filters the air 4.8 times per hour at 190 square feet (10 times the power of our nearest competitor at half the cost).
• In line with current real-time particle conditions, the setting adjusts automatically by the particle sensor to maintain a comfortable home environment.
• HEPASilent and Carbon filter technology can remove about 99.97 airborne particles.
• The noise level is very low, about 18-48 dB, quieter than a whisper.
• Power consumption is about 1.5 – 10 W. 

  • One-touch control system
  • Deficient power consumption
  • Washable pre-filters
  • The noise level is negligible
  • Only for small rooms

Some Similarities and dissimilarities between Blueair 211 vs 411

Although they have many standard features, they also have some differences like:

One Button Control

Blueair did not provide as many advanced features. So with both air purifiers, you will have the ability to clean the air with just one touch of a button. One single button resides on the front of the Blueair 211 vs 411 air purifiers, which are great to use as they only contain settings to switch between gears and set the Filter Reset Indicator.

Size and Weight

Both blue air purifiers have different sizes and weights. The blue air 211 purifier is larger than the blue air 411 purifiers. Blue air 211 is about 13 inches long, 13 inches wide, and 20.4 inches high. While blue air 411 is about 7.9 inches long, 7.9 inches wide, and 16.7 inches high. The weight of blue air 211 is much greater than blue air 411. The weight of 211 is about 13 pounds, while the weight of blue air 411 is about 6.3 pounds.

Space cover

These units offer different features and benefits, so a quick study will help you decide which unit is best for your needs. For example, the Blueair 411 purifies the air in small rooms up to 161 square feet, while the Blueair 211 can purify the air in rooms up to 540 square feet. Nevertheless, they both filter the air every 12 minutes, and the particulate levels in your room will be lowered.

Filter system

Blueair 211 vs 411

Utilizing Blueair’s revolutionary HEPASilent Technology, the Blueair 211 vs 411 can filter up to 99.97% of airborne pollutants. The 411-model is a three-layered filtration system consisting of a pre-filter, a particle filter, and an activated carbon filter. Thanks to its filter, it is a highly-rated model that can be cleaned and reused. The first layer traps dust and allergens, while the next one absorbs things like allergens, germs, and particles. Replacing your pre-filter on your vacuum with this should allow you to save some money in the long run.

Although the filter system works on the same functions, the difference is that blue air 411 has around 360 filter systems while blue air 211 has a simple three-layered filtration system.

Noise level

The noise level of a purifier is an important metric to consider. Both purifiers have different noise levels. The noise level of blue air 211 is very low, about 31 dB at slow speed and 56 dB at high speed. While the noise level of blue air 411 is very low, about 18-48 dB, that is quieter than a whisper.

Power consumption

The Blueair 411 was initially created for small spaces, such as office cubicles. It has a much smaller system and is meant to be placed on your desk, taking up little room and emitting enough air to keep you from getting sick at work. The Blueair 211, on the other hand, is made for larger rooms, including some open areas in a house or an office building. So blue air 211 consumes more power, about 30 – 6 W. While blue air 411 consumes less power, about 1.5 – 10W.

Which Blueair Purifier is better? Blueair 211 vs 411

The Blueair Classic 211 is a purifier that can clean almost any size room up to 540 square feet. Although it was designed for medium-sized rooms, we found that it works great in smaller spaces. It doesn’t have a timer, but it has a low-volume automatic mode for nighttime use. We were impressed by how efficient it is, even with larger rooms, achieving high scores on all of our air quality tests with an excellent rating overall. We found the only significant downside was its large size and high price tag.

If you are looking for something to remove odors or smoke in your home or office, there isn’t a better option on our list. If you don’t need as much power, though, we recommend checking out the Blueair Classic 411, which has a similar design but is slightly less powerful. This model has been shown to remove 99% of dust particles from the air and effectively neutralize common household odors, including cigarette smoke. It also comes with two pre-filters that should be replaced every six months depending on usage. 

Overall, both options provide excellent performance at an affordable price point, so you won’t go wrong no matter which one you choose!

Frequently Asked Questions

 Let’s take a look at some questions often asked about the difference between Blueair 211 vs 411.

What are HEPA filters?

HEPA stands for high-efficiency particulate air or, more simply, high efficiency. They can capture tiny particles like pet dander, pollen, and mold spores. HEPA filters can trap particles 0.3 microns or more significantly with efficiencies ranging from 95% to 99% compared to all other filters.

How does 211 differ from the 211+ Auto?

The Auto version of the Blue Pure 211+ model offers 3-color LED air quality indicator, intuitive Auto mode setting, and integrated particle sensor. The newest edition features a recommended room size of 550 ft2 and an upgraded, lower noise level (23-56 dB) and energy consumption (4-38 W). The older models have a slightly lower Clean Air Delivery Rate (CADR) in its room size range and a more power-consuming AC-version model that runs with noise levels that are the highest of the 3 models at the 23-56 dB range.

Are Blue Air Purifiers Good To Use?

Blue Air air purifiers are excellent and of unsurpassed quality. No other air purifier company produces air purifiers with such performance. Air purifiers from Blue Air routinely achieve 300 or higher CADR ratings on standardized AHAM verification tests.

How do Air Purifiers Work?

An air purifier works by sucking in dirty air, passing it through several filters, and releasing clean air back into your home. Some filters remove gases or chemicals from the air; others trap particles such as dust, pollen, and pet dander. The speed of an air purifier will vary depending on its size and type of filter; you’ll want to purchase one with a high enough capacity to handle your entire house.


The BluePure 211+ specializes in cleaning larger rooms, but the BluePure 411 is proud to be recognized as the most economical PurifierPurifier. With easy-to-maintain three-stage filtration, these BlueAir models meet all the qualifications for a high-quality air purifier.

Despite some reports about both purifiers giving off a plastic smell for the first two weeks, the smell does not linger for long, just like it does for a new car. These purifiers are perfect for people with respiratory problems, newborns, and those on a healthy living lifestyle.

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