Blueair – 203 : Air Purifier Review post image

Blueair – 203 : Air Purifier Review

If you are looking for a compact and sleek air purifier for your small or medium room, then you should consider the Blueair 203. This unit uses the HepaSilent filtration technology to capture various airborne particles.

It captures a large percentage of airborne pollutants to ensure that your room is free from dust mites, pet dander, and pollen to mention a few. In addition, this sleek air cleaner circulates the air five times per hour to ensure that no part of your room has stale air.

In case you are intending to buy this unit for your air purification needs, I am sure that you are looking for reliable information about its features and performance. If that is what you are looking for, then you are in the right place.

At the Air Geeks, we have thoroughly researched to provide you with unbiased information about this air purifier… Let’s dive in!

Description of the 203 by Blueair

To begin with, the Blueair 203 utilizes the HEPASilent filtration technology. This mechanism captures a wide variety of airborne pollutants to ensure that your room remains clean and fresh at all times.

How effective is this technology? The HEPASilent filtration is capable of capturing up to 99.97% of airborne pollutants. In addition, this mechanism captures minute particles that are as small as 0.3 microns. In case you have been struggling to eliminate pollen, dust, pet dander, and other particulate matter from your room, then this is a suitable solution for you.

The HEPASilent filtration technology utilizes a blend of mechanical and electrostatic filtration to ensure that airborne particles have no chances of sneaking to your nostrils. To ensure that you don’t forget to replace the filter, this unit features a magnet timer that alerts the user to replace a worn out filter. Replacing the old filter with a new one helps to enhance the effectiveness of your unit.

A clean interior air

A clean interior air

What is the size of your room? In case your room is smaller than 240 square feet, then the Blueair 203 is a suitable solution for your air purification needs. In addition, this air cleaner offers a CADR rating of 155 and circulates air five times per hour to ensure that every part of your room has fresh and clean air. For better performance, you should ensure that the unit is placed a few inches from the wall.

The Blueair logo

The Blueair logo

Although the manufacturer indicates that the unit runs quietly, we have noted that the fan produces some noises especially on medium and high settings. Nevertheless, some users are comfortable with the white noise since it masks other sounds from the background.

Our research has revealed that most air purifier produce an irritating smell when they are used for the first time. We noted that this unit produces the smell too but it does not last for long. In case you find that the smell is irritating, you can let the unit to run for one or two days in an open space environment before positioning it in your room.

Sleep free!

Sleep free!

Although this unit has a sleek design, we have noted that it is not strongly built. The bulk unit vibrates excessively and cases of missing bolts have been reported. These design flaws are likely to make the unit noisier than it should be. Regarding its durability, we have noted that there are complains of the unit failing after running for just months… Not a very good sign.

Technical Specs

Filter TypeHEPA
Air Flow CFM0.1 microns
Maker-recommended Room Size240 square feet
Noise levelLow
Energy star-rated YES
Power (in W)20 - 80 watts
Remote control ? Y/NN
Dimensions 8 x 17 x 21 inches
Weight25 pounds
Maker (brand)Blueair (203)
Warranty5 Year Warranty
Link to ManualHere


  • Quiet operation. Compared to other air purifiers, this unit is quieter. However, it produces a relatively loud sound in the highest setting.
  • Effective air purification. This unit effectively captures airborne particles to ensure that your room has clean and fresh air.


  • Not strongly designed. From our research, we have observed that this unit has some design flaws that make it weaker. As a result, it vibrates excessively producing a disturbing noise.
  • Produces a chemical-like smell. Just like most air purifiers, we have noted that this unit produces an irritating smell when it is used for the first time. This smell disappears after one or two weeks.
  • High power consumption. We have noted that this unit can cause a significant rise in your usage if it is used 24/7.

Users' feedback

Users quotes on Amazon.comAlthough this unit is not quite as quiet as the 400 series Blueair, the 400 series is quite a bit larger and looks like a big huge computer tower. The 200 series is a nicer size and looks more like an air purifier. The sound from the 200 series can actually be quite soothing in terms of helping you to sleep and relax. In my fairly small bedroom, both units seemed to perform equally so I opted for the 203W since it looks better, was cheaper and the filters are a bit cheaper as well. The Blueair 203 includes an electronic filter change timer as well. I recommend this unit for the price-the air seems a whole lot fresher and cleaner and my allergies have been alleviated. I do wish it had one lower setting that was slightly quieter though the lowest setting is by no means loud and most people would not even notice it at all if you had it on in a room and the unit was out of sigh or something like that."

Users quotes on Amazon.comWorks great! Sucks the smoke out of the air quickly!"

Conclusion: 203 by Blueair

The Blueair 203 utilizes the HepaSilent filtration technology to ensure that you room is free from various airborne pollutants. This air purifier has a high CADR rating and runs quietly. However, the sound may be loud if the unit is running in the highest setting.

We have also observed that this unit, just like other air purifiers, produces a chemical smell when it is new. In case these drawbacks are not a big problem to you, then this air cleaner may be the right solution for your air purification needs.

Our rating:


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