Blueair Classic 205 Air Purifier with WiFi and Particle Filter

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Blueair Classic 205 Air Purifier with WiFi and Particle Filter

Classic 205 delivers solid performance with its compact fan design, large filter surface, and HEPASilent™ technology, which combines electrostatic and mechanical filtration technologies. This combination delivers high Clean Air Delivery Rate (CADR) with whisper-silent operation and high energy efficiency. In fact, all our Classic air purifiers work so quietly that you might have to check to make sure it’s switched on. And on its low setting, the Classic 205 uses about as much electricity as a light bulb.
A digital control panel with easy-to-read LED icons lets you see the status of your air purifier’s Wi-Fi connection, operating speed and filter. Adjusting operation is easy with touch controls. You can also download the Blueair Friend app and connect it to the Classic 205 for remote control from any smart device, whether at home, at work or at play.

The Wi-Fi enabled Blueair Classic 205 is the right-sized air purifier for a small room that's up to 279 ft2 (26 m2). At a convenient 24 lbs (11 kg), it weighs less than a typical carry-on bag, so it’s easy to move to wherever it’s needed most. Great for bedroom air that improves sleep and is virtually free of allergy and asthma triggers.

What Does the Blueair Do?

This Swedish-designed Advanced Air Cleaner AND Air Purifier uses a 3-stage mechanical and electrostatic filter to capture 99.97% of particles down to .01 microns in size with an average CADR (Clean Air Delivery Rate) of 200 cfm for dust and pollen.

The HEPASilent™ air filtration technology actually reduces levels of ozone and other airborne impurities in the air while maintaining low energy consumption.


How Does it Work?

Blueair Smokestop Air Purifiers use a revolutionary combination of advanced filter media and an encapsulated ion particle charging chamber that makes it possible for the Blueair air purification system to achieve better results than either mechanical or electrostatic technology alone.

They use a non-toxic polypropylene filter that contains millions of ultra-thin fibers that trap tiny particles as they pass through the pleats.

These purifiers eliminate bacteria, viruses and mold naturally, without chemical additives and also capture more dirt than competitive systems.

Using a patented 3-Stage HEPASilent™ Technology, the Blueair purifier captures 99.97% of particles down to .01 microns in size, considered the most harmful to your health as they can be absorbed into your lungs and into your bloodstream to cause a whole list of problems.



Wi-Fi connectivity:

Compatible with 802.11 b/g/n router on 2.4GHz Wi-Fi Network band. Network security; open, WEP, WPA, & WPA2


The Blueair Air Cleaner works by:

  1. Pulling air in through the backside of the unit
  2. Passing it through the pre-filter where larger particles are captured
  3. Then passing it through the electrostatic HEPA filter to capture ultra-tiny particles down to .3 microns in size
  4. 4.The activated carbon filter absorbs contaminants through the carbon pellets set within the honeycomb structure of the progressive filter
  5. The air then travels into the ionizing chamber where it becomes heavily charged with negative ions.
  6. Fresh, clean, negatively charged air is then released through the top of the purifier to "search out" unwanted pollutants in your home or office space.
  7. Once the negative ions find impurities, they collide with them, effectively give them a charge and when they pass through the air purifier again, more easily cling to the electrostatic filter thereby reducing the air pollutants by 99.97% down to 0.01 microns in size.


The 3-Stage progressive filtration allows larger particles to get caught first and smaller particles to get caught later thereby reducing the chances of the fine particle filter fibers getting clogged with large particles.

Blueair filters use millions of ultra thin fibers that get progressively tighter throughout the filter media. This allows for effective removal of even the tiniest particles by the time the air has reached the end filter.



Is It Loud?

Not really; it cleans the air quietly. Sophisticated materials and precision engineering allow the filter to clean indoor air without the noise associated with less advanced units.

On the lowest setting, the units emit no more sound than a desktop computer. To achieve exceptionally quiet operation, this air cleaner's patented HEPASilent™ filter technology traps particles two ways: with mechanical and electrostatic filters.

This combination creates a filter system through which air flows freely. Most air cleaners require a powerful, noisy fan to pull air through densely packed filters.

Since air passes easily through the filter media, the fan doesn't have to work as hard or as loud. Even the housing is designed with quiet operation in mind, replacing sound-sonant plastic with noise-muffling steel.


Will it Create a Draft?

Instead of discharging a windy stream of filtered air, the Blueair purifier diffuses air gently through an area six times greater than the average air cleaner of the same class.

Operating on its lowest setting, this purifier produces virtually no noticeable draft, while still providing an exceptional air exchange rate.

The SurroundAir™ system achieves peak performance without annoying drafts by drawing in dirty air from the back, moving it through a less dense filter media, and releasing clean, filtered air from the top.



Is it Energy Efficient?

YES!!! A phenomenally low power usage means that you can run this air cleaning system 24/7 without a jump in electricity consumption.



How Long is the Warranty?

Blueair warrants that your air purifier will be free from defects in material or workmanship for a period of five (5) years from the date of purchase provided that you have completed and returned your warranty registration to Blueair, and that the filters are replaced with original replacement filters at least once every six (6) months (the Limited Warranty).


Quality Design

Not only is the Blueair Smokestop Air Cleaner visually appealing, designed to last and compact enough to fit in almost any room of your home or office, but it's Swedish design and extremely quiet fan allows air to flow freely through the unit creating no noticeable draft.

Despite its quiet operation, however, the device is powerful enough to recycle air in a room five times every hour. The filters are easily accessed and replaced, the casters allow ease of maneuverability (in large models only), and the exterior wipes clean.

The durable construction is made of galvanized steel with an environmentally-friendly powder coating that does not create any harmful off-gasing.


Consider the Blueair 203 Smokestop air purifier as your home air purifier or as your office or business air purifier. Also available with the Activated Carbon filter for those who need smoke and VOC removal.

Please note the filters require replacement every 6-12 months. Click here to view the replacement filters and their cost.



  • HEPASilent™ Technology allows cleaner air at a faster rate
  • Compact design fits almost anywhere
  • Quiet Fan
  • Activated Carbon Filter
  • Energy Efficient
  • Steel Construction and easy maintenance, simply open the side, slide out filter and replace every 6 to 12 months



Room Size 175 square feet
Colors Silver
Dimensions 21" x 17" x 9"
Weight 24lbs
Speeds 3
Airflow Rate 80-200 CFM
CADR Smoke 180, Dust 200, Pollen 200
Power 20-80 watts
Noise Level 32-56 dB(a)
Air Exchanges Per Hour 5 assuming 8-foot ceilings
Casters No (handles)
Filter Replacement Indicator YES


Best in Class Ranking!

This purifier is an excellent system for people living with allergies, asthma, or other respiratory conditions, or for anyone who wants cleaner, more breathable air. This same filter technology earned the Blueair 503 "Best of Class" ranking in independent testing of Clean Air Delivery Rates.

Environmentally Aware

Blueair products offer exceptional performance without polluting the environment. Blueair replaces standard triclosan-coated paper or glass filter fibers, which can harm the environment when released into the waste stream, with safer, nontoxic polypropylene.

This revolutionary filter media is one of the least harmful plastics, producing only carbon dioxide and water as it decomposes. Because polypropylene is waterproof, our filters naturally resist contamination from bacteria, viruses and mold, without chemical additives or washes. Blueair even uses a special powder coat finish that produces no chemical outgassing.


Certifications Across the Board!

AHAM Certified

Blueair Air Purifiers are certified by the Association of Home Appliance Manufacturers along with all these shown below.









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5 Year Limited Warranty

1 Review Hide Reviews Show Reviews

  • 5
    Great Small-Space Blueair Air Purifier

    Posted by Unknown on 2nd May 2013

    The Blueair 203 is an excellent purifier for small spaces. It really effectively reduces allergens, meaning less irritation for me! The price is really a deal for a compact number that performs just as well as larger models.