Blueair Classic 205 Air Purifier: Trusted Review & Specs

The Blueair Classic 205 is the little smart brother in the whole Blueair Classic family. As one in the most powerhouse family of Blueair, with Classic 405 – winners of awards and Classic 605 – the powerful smart air purifier, we should expect in this Blueair Classic 205 a lot. So don’t let you wait anymore, here is the Blueair Classic 205 Review.

In Breathe Quality, we have reviewed all air purifiers under these sections. Also, we guarantee that:

  • We do give honest reviews (both pros and cons) so anyone will guarantee to have the wisest choices.
  • We do not (and never) exaggerate one product just to let you click the links and buy that product blindly.


blueair classic 205 reviewBlueair Classic 205 Air Purifier: Trusted Review & Specs


  • Great performance rating
  • Highest quality material
  • Wifi and Alexa enable
  • 5-year warranty

  • Is more expensive than others with same room coverage
  • Quite noisy
  • No integrated Smart Sensor

As one of the best air purifier brands in the world, the Swedish Blueair has delivered their products to more than 10,000 customers. Purchasing one air purifier from this brand is highly recommended. Now, because you are here, you must want to read the Blueair Classic 205 Review to see if this air purifier is a smart choice for 2019 or not.

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Blueair Classic 205 Price

Though being the little brother, and the most affordable smart air purifier in Classic family, Blueair Classic 205 is still under the low mid-range in the market.

The original price starts from $349, and for that, Blueair Classic 205 is even more expensive than some other brands’ flagships, like Winix WAC9500 or Levoit LV-H133. Other good air purifier you could consider in this price range is the Rabbit Air BioGS 2.0 – one masterpiece of modern air purifiers.

If you are looking for a smart air purifier, Blueair Classic 205 is a good start. However, after the unveiling of the Blueair Sense +, there is no reason to buy any other smart air purifiers in low-range segment. But you still can check the best deal for this Blueair Classic 205 below.

Top Blueair Classic 205 deals right now

Blueair Classic 205 Air Purifier, True HEPA Performance by HEPASilent Filtration for Allergen, Dust, Mold Reduction, Asthma and COPD Relief.

The Smart Home ALEXA compatible air purifier with a powerful and high quality air filtration process. Perfect for a small room.

Related post: Best Air Purifiers in 2019.

Blueair Classic 205 Design and Size

As the first one of its smart kind, Blueair Classic 205 remains the classic design from the first air purifiers. That being said, we will have a durable steel air purifier, with solid built-in body and pure look. We still have the characteristic metal front with Blueair logo and an LED on/off indicator.

The size of this Blueair Classic 205 is a little bit smaller than its brother, with only 21 inches in height and 17 inches in width. Though smaller than Classic 405 and Classic 605, this air purifier is still easy to control while sitting or standing.

We will have a big air intake grill from the back and an air outlet grill on top. This is the original design concept of the Blueair’s air purifiers, to make use of the classic air flow structure from side-to-top. This design concept can help maximize the efficiency of its fan power, and is popular in other air purifier brands in same price range, like Winix NK105, Rabbit Air BioGS 2.0 or Sharp FPA80UW.

Also on top of this air purifier, Blueair Classic 205 features the recognizable digital control panel with easy-to-read LED icons let you see the status of your air purifier’s Wi-Fi connection, operating speed and filter.

blueair classic 205 review

Source: Amazon

Just like the Classic 405, Blueair Classic 205 doesn’t come with a set of casters. Luckily, this air purifier is only 24 lbs and is lightweight enough to move around your home. However, if you value the weight of the air purifier much, you need to check the lightweight ones like Blue Pure 411 (also from Blueair), Levoit LV-H132 or Rabbit Air BioGS 2.0.

Related post: Best air purifiers for bedroom in 2019.

Blueair Classic 205 Filters

When it comes to the performance and power of an air purifier, we decide based on how many air filters it has and what types of air filters are used. Not like any other brands, Blueair uses the same air filter structure for all of their Sense and Classic air purifiers. This will guarantee a top-notch performance for whatever air purifier you choose from this brand, even in the little Blueair Classic 205.

  • Particle Filter/ SmokeStop Filter – You can choose from the Particle Filter with the power to capture 99.97% of pollutants such as pollen, dust, pet dander, mold spores, viruses and bacteria down to 0.1 microns. Otherwise, you can pay more for SmokeStop Filter, which is most likely the combination of True HEPA filter and Activated Carbon Filter.

This is the same HEPASilent filter being used in the Blueair Classic family. With a combination of both mechanical and electrostatic filtration, the HEPASilent technology can trap even the tiny 0.1 microns airborne particles of pollutants, with an efficiency rate of 99.97%. It is safe to say that the air filtration technology of Blueair is one of the best at the moment. Having a Blueair Classic 205 is a guarantee of clean air in your home.

If you are willing to pay more, you will have the SmokeStop filter, which adds an extra layer of Activated Carbon filter. This Activated Carbon filter is made of magnesium dioxide and copper oxide impregnation, which is highly effective against all kinds of common gaseous pollutants like Volatile Organic Compounds (VOCs), traffic exhaust, smog, odors, and smoke.

And don’t forget that all of Blueair Classic air filters are naturally anti-bacterial and 100% recyclable. That’s why in Breathe Quality, we truly value the Blueair brand in terms of high quality and green materials.

blueair classic 205 review

Source: Amazon

Being an air purifier for small room, Blueair Classic 205 filter is the most affordable in this family to purchase, from $49 for the Particle Filter. The cost of this filter is also among the lowest if you compared with other $300 air purifiers, like Rabbit Air BioGS 2.0 with $85 or Winix NK105 with $100. However, the downside of this Blueair Classic 205 filter is the lifetime of 6 months, which translates into 4,380 hours of use. This lifetime is quite shorter than others, especially for a mid-range air purifier.

Related post: Best air purifiers for allergies and asthma in 2019.

Blueair Classic 205 Room Coverage

Blueair Classic 205 is ideal for a small room, with a room coverage of 279 sq ft. This room coverage is even way smaller than any well-known $200 air purifiers like Honeywell HPA300 or Coway AP-1512HH. For the price, if you want to deal with larger room, you should check the Rabbit Air BioGS 2.0 (with 625 sq ft) or at least Oransi OV200 (with 400 sq ft).

The ACH of Blueair Classic 205 is 5X. This is the common ACH rating from any devices in Blueair Classic family, which allows this Blueair Classic 205 to clean your room every 12 minutes.

The CADR of Blueair Classic 205 is 200 Dust/ 180 Smoke/ 200 Pollen (cfm). The CADR rating is perfect for its room coverage, and with a high ACH rating as 5X, we believe this Blueair Classic 205 can even clean a room up to 360 sq ft in size. Also, this CADR rating is higher than many competitors in same price, like Rabbit Air BioGS 2.0, or Oransi OV200.

Related post: Best large room air purifiers in 2019.

Blueair Classic 205 Sound

Even with the HEPASilent technology, Blueair Classic 205 is not as silent as expect. This problem is mostly because of the high fan power of this air purifier.

With 3 fan speeds, Blueair Classic 205 has the same noise level with the bigger Classic 405, which is 32 db at lowest setting. This is really noisy if compare with the most silent air purifiers like Winix WAC9500, Levoit LV-H133 or Rabbit Air BioGS 2.0. However, since the library noise level is 35 db, this noise level of Blueair Classic 205 is mostly acceptable.

At highest setting, the noise level is even higher than Classic 405, with 56 db. That’s why we should not run this air purifier at public and quiet spaces like the office or library, especially when we don’t have the smart sensor to keep the fan speed as low as possible.

Related post: Best air purifiers for office in 2019.

Blueair Classic 205 Power Consumption

Using the old technology of HEPASilent, Blueair Classic 205 has a higher power consumption than others from this brand at lowest setting, with 20W. At highest setting, the power consumption is about 80W. If you value the energy-saving air purifier (admit it, everyone does), you should choose other devices from this same brand, like Blue Pure 211 or Blue Pure 121. Or else, I recommend you to look for the Rabbit Air BioGS 2.0 – one of the best energy-saving air purifiers for the price.

For running a Blueair Classic 205 8 hours per day, you only need to pay from $25 to $35 annually.

Blueair Classic 205 Additional Features

Blueair Classic 205 is a smart air purifier, which means you can connect this device to Wifi and control it easily via a mobile app named Blueair Friend App (available both for iOS and Android). Moreover, if you have Amazon Echo, you can use Alexa to control Blueair Classic 205 via voice commands.

Other high-end additional features like Night Mode (to reduce the fan speed and stop the light) and Timer are all available in this Blueair Classic 205. In addition, you will not need to note the date of filter replacement, because this air purifier comes with a handy LED indicator to remind you.

But there is no Smart Sensor (which help you automatically adjust the fan speed according to the air quality) in this Blueair Classic 205, which is not available in Classic 405 and Classic 605, either. For a $300 air purifier, you will not believe that Blueair can’t integrate the air sensor into their devices. This feature is more or less must-have, especially when other competitors have done it so well. We can tell a few names like Winix WAC9500, Rabbit Air BioGS 2.0, Levoit LV-H133 or even the $200 ones like Coway AP-1512HH or GermGuardian CDAP5500BCA.

Related post:

1, Best Air Purifiers for Smoke in 2019.

2, Best Air Purifiers for Dust in 2019.

3, Best Air Purifiers for Mold in 2019.

Blueair Classic 205 Customer Service

As one of the best recommended air purifier brands in 2019, Blueair focuses strongly on the customer service. With a lot of local stores and a dedicated supports from both phone and email, you are guaranteed to reach them as soon as possible.

Also, Blueair provides a huge helpdesk in their website to help you answer the problems immediately. If the worst comes to the worst, you can put trust in the 5-year warranty from Blueair. Remember only one thing, you need to complete the Product Registration form within 60 days of purchase or register through the Blueair Friend mobile app to secure the 5-year warranty. Otherwise, you only benefit from 1-year warranty.

Top Blueair Classic 205 deals right now

Blueair Classic 205 Air Purifier, True HEPA Performance by HEPASilent Filtration for Allergen, Dust, Mold Reduction, Asthma and COPD Relief.

The Smart Home ALEXA compatible air purifier with a powerful and high quality air filtration process. Perfect for a small room.

Our verdict

A good and smart air purifier, but the price is high for a small room device. Blueair Classic 205 is also old and noisy, which makes customers prefer the Blueair Sense + much more, with better overall performance.

  • Cleaning Power
  • Portability
  • Features
  • Power Consumption
  • Price


Blueair Classic 205 is a member of a great brand for air purifier, but its performance doesn’t justify its price tag.