Blueair Blue Pure 211 Air Purifier Review

Blueair Pure 211 Air Purifier

I decided to review the blue pure 211 mostly due the solid reputation Blueair has when it comes to making air purifiers. The novelty of the newly designed blue pure 211 is a breath of fresh air coming from a company that previously thought that all air purifiers must have the same boring boxy design. Apparently they’ve hired a design team now, which is most welcome, if long overdue.

I also appreciate the promised coverage area of about 540 square feet.

Blue air promise low power consumption, three-stage filtration, quiet operation, and impressively clean air.

The unit comes with color customization options and a 2-year warranty.

At the first glance, this air purifier seems like a good choice for a large room. The only downside I see right now is the initial unit price. Let’s take a closer look at the new Blueair masterpiece.

Filtration System

This particular air purifier has an interesting filtration system. Unlike 90% of the units I’ve reviewed, it doesn’t have a standard TrueHEPA filter. Instead, it has it’s own particle and carbon filters with the HEPA silent technology.

Pre-filter – Here comes another surprise. This air purifier has a fabric pre-filter, which is part of its design. The fabric filter takes care of large contaminants, such as dust and hair. You can either wash or vacuum this filter every three to six months. Two such filters come in the box. It’s up to you to choose the colors.

Particle Filter – This filter takes care of 99.97% of the contaminants 0.1 microns in diameter. It deals with pollen, mold spores, pet dander, dust mites, and bacteria. The filter helps the purifier fully clean the room of up to 540 square feet in about 15 minutes. It needs to be replaced once every six months. The filter comes in a package with carbon filter and costs about $60

Carbon Filter – This filter takes care of VOC, cooking odors, smoke, and chemicals. While the manufacturer claims that this filter can be purchased separately, I’ve only found the combination option. However, I wouldn’t recommend using the particle filter without the carbon filter anyway. This filter needs to be replaced once every 6 months. It comes in a package with the particle filter and costs about $60.

Overall, this filter system is highly effective when coupled with the 360-degree air intake and the powerful motor of the air purifier. It’s a highly effective system, which deals with the contaminants better than the standard TrueHEPA option. While HEPA takes care of 99.97% of particles 0.3 microns in diameter, this filter deals with particles of 0.1 microns in diameter, which is a formidable difference. Such filter is suitable for highly sensitive people, who need extremely clean air due to allergies.

One downside of this filtration system is its cost. The annual air purifier maintenance will cost you about $120. This figure is rather high compared to similar purifiers.


Blueair Pure 211 - colors



Blueair Pure 211 designThis time Blueair did a wonderful job with the unit’s design. While the previous models had a boxy and not-so-appealing design, this one definitely stands out. Even though the purifier can handle large rooms, it’s not too sizable. The unit weighs 13 pounds and the dimensions are 13x13x20 inches. Meaning, it’s easy to carry the purifier around the house or even climb the stairs with it (in case you want to use it in different rooms).

Another benefit of the design is the pre-filter, which is set on the outside of the unit and comes in several colors. You can choose between black, blue, yellow, grey, and pink. The advantage of such design is that you always see when the pre-filter needs some cleaning.

The unit is operated with just one button, which harmoniously matches the purifier’s design. The button adjusts the fan speed. Inside you can see the filter replacement indicator. The simple design allows you not to worry about reading the manual and getting confused with various settings. Basically, you just set the fan speed and allow the air purifier to do its job.

The compact build of the air purifier allows you to place it anywhere in the room. Just make sure, it doesn’t have any obstacles around it, which can interfere with the 360-degree air circulation.

The unit is light and small so choose the placement wisely in order not to knock it down while going about your business.

Smart Options

Even though this particular model is on the higher end of the price index, it doesn’t have any sensors or smart options. The only thing it helps you do is find out when the filter needs to be changed. After 5 months of heavy operation, the filter light will turn yellow to let you know that it’s time to buy a new one. Another month later, the indicator will become red.

Another semi-smart option takes care of your sleep. When seven seconds pass after you adjust the air purifier, the light dims to the 10% of the initial brightness. This should be enough not to interfere with your sleep unless you are an extremely light sleeper.

Noise Levels

I really appreciated the quiet operation of this unit. It’s a find for people, who are sensitive to sounds when they are awake and asleep. Even at the highest setting, this air purifier is almost silent.

  • Low setting – 31dB (silent library sound)
  • Medium setting – 45 dB (quiet room sound)
  • High setting – 56 dB (quiet to moderate conversation)

As a light sleeper, I always pay attention to the noise levels of the air purifiers. This one gets one of the highest scores from me. Thirty-one decibels can hardly interfere with anyone’s sleep, so it’s a great choice for your bedroom.

Coverage Area

This air purifier is rather powerful due to its built and fan system. The manufacturer claims that it can take care of a large room of about 540 square feet. Let’s find out if it’s true by checking the CADR numbers:

  • Dust 350
  • Pollen 350
  • Smoke 350

As usual, I use a simple formula to calculate the real coverage area (CADR x 1.5). What we get is 525 square meters. This means the manufacturer is telling the truth. You can easily use this air purifier in a large room. The unit makes five air changes in one hour, which is sufficient for a superb air cleaning.

Blueair Pure 211 fresh air

Energy Efficiency

Even though this air purifier is highly powerful, it’s surprisingly energy efficient. The unit has an Energy Star rating, which means it doesn’t just help you save money on energy bills, it reduces the carbon footprint on our planet.

The power usage at different fan settings is as follows:

  • Low setting – 30W
  • Medium setting – 45W
  • High setting – 61W

Overall, this air purifier gets one of my highest scores for energy efficiency.


The manufacturer provides a decent 2-year warranty. Be careful to register the unit on the company’s website upon purchase to get the second warranty year. The warranty applies only if you use the air purifier according to the instructions.


  • Easy operation and maintenance
  • High-quality filter
  • Energy efficiency
  • Quiet operation
  • 360-degree air circulation
  • Large coverage area
  • Great design


  • Lack of smart features
  • High initial and maintenance cost

Blue Pure 211 Air Purifier Review Conclusion

Overall, I would say this is possibly one of the best quality air purifiers on the market right now. It's especially good at servicing large rooms and has a great modern design. It’s easy to maintain and operate and even though the purifier doesn’t have any smart sensors, it does a wonderful job cleaning the air. The low noise levels and dimmed lights make it a great option for the bedroom too.

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