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Blueair Blue Pure 411 Air Purifier – Review


Blueair Blue Pure 411 is unique by its design and simple, easy to use features. Blueair, as a company, is well known all over the world. They operate in over 60 countries. The founder of the company is from Sweden, and his goal is to create the best air purifier in the world.

Keep on reading if this simple to use air purifier is one of the best air purifiers in the world or maybe simplicity puts the limit to its powers.

Blueair Blue Pure 411 Air Purifier Review

The unique compact design makes Blueair Blue Pure 411 an exciting choice. You can quickly move it from room to room, and simple design allows blending in almost any environment.

Blueair Blue Pure 411 Air Purifier

Blueair 411 uses a three-stage filtration system: fabric pre-filter, particle filter, and carbon filter. However, Blueair is known to use small ionizers in their products. Which then means that this is actually a four-stage filtration system.

Small ionizer in this device is so tiny that it can’t produce dangerous ozone. The device is certified with the Californian Air and Resources Board, which means you can use it if you are in California.

Blueair Blue Pure 411 is simple to use and features a unique design.

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Blueair Blue Pure 411 Specifications

Below is a complete list of important specifications and features included on the Blueair Blue Pure 411 Air Purifier:

ModelBlue Pure 411
Dimensions16.7 x 8 x 8 inch
FiltersHEPA Silent + Carbon Filter, Pre-filter
Return30 days via Varies by retailer
Warranty Up to 5-years
User manualPDF


The most exciting part of the design is fabric pre-filter, which can be bought in different colors. You can get a black pre-filter, and then you will have a black and white air purifier, which are colors that can be used in any room. However, if you love to use wild colors, there are many to choose from. Dark Shadow and Diva Blue are usually shipped by default, but if you like, you can order separately other colors like Buff Yellow, Crystal Pink, or Lunar Rock. 

Blueair 411 Air Purifier

Construction of this air purifier is well done and reminds me of a Bluetooth speaker. On the top are holes for better airflow, and in the middle is one big button. This button is used to control everything about this air purifier. Airflow is excellent, thanks to 360-degree air suction. As well on all sides, you will find the Blueair logo, which proves that the company wants you to know that they are very proud of their product. 

Blueair Blue Pure 411 is light, which allows you to move it from one room to another easily. As already mentioned, the cylindrical shape allows this air purifier to blend in any room. And it will enable you to use it in any part of the room no matter how little space you have. 

Because of small size, the filter is almost all over the construction, which in return gives a higher performance at removing unwanted pollution. Small size is also disadvantaged because if you have little kids, they may bump the device and flip it over. The good news is that on the bottom is a grip that keeps the air purifier stable.

One Button For Ultimate Control

There is only one button on the air purifier, and with that button, everything is controlled. Some people may think that there is an App or Wi-Fi connectivity that gives you additional features, but there is not. This air purifier is simple to use, and there is no magic behind it. You turn it on, and it works, what else do you need?

Blueair Blue Pure 411 Touch Button

Some people may find lights on the air purifier disturbing during the night. You can contact Blueair directly and ask for NightCap. It is a little sticker that covers the lights.

To start the air purifier, push the button. Push it again, and it will start working on the second speed, one more push, and the air purifier will use maximum speed to filter air. To shut it down, click the button again after the maximum speed mode. 

I must say that I was a bit disappointed because there is no beep on the button push. However, the light around the button is strong enough, and you will notice the change in the speed. But on the other hand, it has an auto-start feature. This feature means that if there is a power outage or if you use the power switch timer, you can automatically start the air purifier. As soon as there is a power air purifier will start to work. 

Not pressing the button for 5 seconds will dim all lights on the air purifier. On the next push of the button, the light will come back. Speed will not change when lights are off. First, you need to bring them back, and then the next push on the button will change speed.

Size and Dimensions

Blueair Blue Pure 411 is light and only has 3lb. It is one of the lightest air purifiers on the market. There is no handle on it, so you may think it will be hard to move, but the lightweight allows you to take it with you everywhere you go easily. Thanks to small dimensions (16.7 x 8 x 8 inches), it can easily be put on the table, desktop, cabinet, or any other small furniture.

Blueair Blue Pure 411 needs to be placed four inches from the wall or any other object to provide unobstructed airflow. Kids need to be careful with this device because they may push fingers in the holes on the air purifier and hurt themselves that way.

Accessories and Parts

Once you buy this product in the package, you will get the air purifier, particle and carbon filter, fabric pre-filter (Diva Blue), as well as additional pre-filter (Dark Shadow), user manual and of course warranty card.

Clean Air Delivery Rate (CADR)

Thanks to the 360-degree airflow, it has excellent CADR scores. Check the CADR table below.

Smoke180 m3/h (105 CFM)
Dust200 m3/h (120 CFM)
Pollen200 m3/h (120 CFM)

Blueair Blue Pure 411 Video Review

Blueair Blue Pure 411 is one of the lightest air purifiers on the market. We did many tests on this device. Noise and performance tests have proven that this device can be very useful in some situations. Also, the unique design and ability to choose colors make this air purifier popular. Watch the video and learn all you need about this air purifier, how to use it, and how to change the filter.


Removes Odors

Thanks to a carbon filter that is covering almost all parts of the air purifier, the odor will be removed at rapid speed. 

Removes 99% Particles

Blueair Blue Pure 411 is tested, and it can remove 99% of particles down to PM 2.5. Smoke, bacteria, dust, mold, pet dander, cooking odors, viruses, pollen, and other pollution that is hovering the air can be removed with this air purifier.

Low Energy Consumption

Believe it or not, this air purifier only uses 10W of energy when it is on maximum speed. Many old devices use that energy on standby.

Automatic Start

This air purifier doesn’t have integrated automatic work or timer, but with a smart plug, you can create your own timer. You can do that because as soon as the air purifier gets power, it will start working, which allows automatic work and timer.

Blueair Blue Pure 411 remembers last fan speed, and if there is a power outage, it will continue its work as soon as the power comes back at the same speed.

Ion Particle Charging Chamber

As already mentioned, Blueair uses ions to combat pollution. The Ion Particle Charging Chamber is much better technology than electrostatic. And it is not only better but also safer. Blueair Blue Pure 411 is ozone free.


Warranty on Blueair products is decent; you will get a one or two year warranty. However, if you register your product on the Blueair website, you will get an additional warranty.

Easy Filter Change

Filters can be easily replaced by anyone, no need for a tech-savvy to help you. Instructions are simple, and everyone can do it.


As already said, this air purifier uses a three-stage filtration system with the ionization process. The pre-filter is a simple fabric that is easily replaced. Pre-filter is also washable, and if you like, you can buy additional pre-filters to match your room style. Particle and carbon filters are combined together and are used to remove particles and odors.

Particle + Carbon Filter

I must say from the start that this filter is not a true HEPA filter since it removes 99% of airborne particles, and to be certified as a true HEPA filter, it needs to remove 99.97%. However, this filter comes close thanks to the patented HEPASilent technology. The carbon filter is good enough and can remove nasty odors in a decent time.

Blueair Blue Pure 411 HEPA Silent Filter

HEPASilent technology is one of the best features this filter offers. Still, the ability to change pre-filter and match it to the style of your room is another great benefit of this air purifier.

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Pre-filter is essential, and its job is to catch large particles that may represent trouble to fine filters. Pre-filter in Blue Pure 411 is unique, it is easily replaceable, washable and you can buy additional ones in different colors. You can even use a vacuum cleaner on it. You will notice dust on the pre-filter, and as soon as you see it is too dirty, you can clean it. 

Pre-filter is not replaceable; it is washable. As soon as you see, it has dirt, clean it.

Filter Replacement

Filter replacement is easy and is one of the great features of this air purifier. You can wait for a red light to let you know that filter needs replacement, or you can replace it after six months, which is a recommended time for a replacement. 

How To Replace Filter

First, we need to take the old filter out. We do that by taking the top cylinder off by rotating it counterclockwise. Now we can remove the pre-filter which we need to clean with a vacuum cleaner or wash it in the washing machine. 

Blueair Blue Pure 411 Replace Filter

Remove the old primary filter by removing the filter shelf and pulling the main filter upwards. After that, you need to place the new filter in, return filter shelf, and pre-filter. Now all you need to do is close it by returning a top cylinder and attaching it on the top by rotating it clockwise. Don’t forget to hold the button for 5 seconds to reset the filter replacement timer. Color should change from red to white, which indicates that the filter is good. You need to make sure the air purifier is not attached to the power during the filter replacement steps.


We have tested Blue Pure 411 at different speeds and different situations. The air purifier has three speeds. The third speed is loud and generates weird noise. It is hard to listen to that noise for a longer time. The second speed is much better.

However, on first speed, noise is as low as it gets, you won’t even notice it. At first speed, you can easily use it in the bedroom. In the table below, you can see our noise results.

SpeedValue (dBA)
Speed 140.6 dBA
Speed 254.5 dBA
Speed 367.5 dBA


We did performance tests as well. This low energy consuming air purifier did a decent job in some of the tests. We did experiments in different room sizes. The recommended room size for this air purifier is 161 square feet. On the third speed, performance is best, but so is the noise.

Blueair Blue Pure 411 Performance Test

Airflow is strong and fluctuates from 35 to 120 CFM depending on the speed. In all our tests, we used third speed. At that speed, dust from the room will be gone fast, and in only a few days, you will notice there is less dust in the room. These tests we did are a real-life test, and there were no lab tests done by us.

For best results, start it on third speed and let it run for some time, after that you can switch it to the first speed.

194 Square Feet Room

This room is a bit larger than the recommended one. But still, the device did a great job. In only one hour, it dropped AQI from 133 to 6. That means that air quality was improved by 95%. We let it run for a longer time, and AQI was additionally dropped. Air quality was stable after that, and there were no signs of air pollution increase.

#Starting BaselineAfter 60min
PM 2.5101.54.2
PM 10142.15.9

320 Square Feet Room

Double the size than the recommended room; we were skeptical about what this little device can do. But Blueair Blue Pure 411 shows no mercy to pollution and reduced AQI from 131 to 13. That’s 90% better air. We must say that the test was done on third speed; on the first speed, results would not be so good.

#Starting BaselineAfter 60min
PM 2.599.810
PM 10139.714

Operating Cost

It uses so little energy that it is better to stay on than to shut it down. The maximum energy consumption is 10W. On first speed uses only 0.6W. Standby consumes 0.3W. Your energy bill will stay the same even if you run it all the time.

If used in the bedroom, it will drastically improve sleep quality.

In other words, if you run it for 24h and 30 days, you will pay less than a dollar. Without a doubt, this air purifier deserved the Energy Star certificate. The highest operating cost is filter replacement.

SpeedPower Usage (W)
Speed 10.6W
Speed 22.4W
Speed 37.6W


To revise, here are advantages and disadvantages of Blue Pure 411:


  • Easy to Set Up
  • Silent on First Two Speeds
  • Stylish
  • Easy to Clean Pre-filter
  • Washable Pre-filter
  • 360 Degree Air Intake
  • Low Energy Consumption
  • Great Performance
  • Additional Pre-filters in Different Colors


  • Pre-filter is a fabric that covers the primary filter. If you touch the pre-filter, you can feel the ribs of the primary filter. That makes it less sturdy.
  • No True HEPA Filter
  • The Lights Do Not Dim as They Should


Blueair Blue Pure 411 is a small but powerful air purifier. It is simple to use and is highly recommended for the people that don’t need fancy options. You can use it on the table, in the kitchen, in the bedroom as well as the living room. This air purifier will do its job. 

Blueair believes in their product, and because of that, they give a generous warranty. You should believe them too and enjoy the fresh air that this air purifier provides. Despite not having a true HEPA certificate, this air purifier is very good at removing small particles from the air.

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