Blueair 405 Air Cleaner with Particle Filter-- Sorry, Due to high demand, this item is on back order. Upon availability orders will be shipped by order number.

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Expected release date is 10/31/2020

Blueair 405 Air Cleaner with Particle Filter

This Classic 405 is recommended by the Swedish Asthma and Allergy Association* and is great for making sure that the air in living rooms, family rooms and large bedrooms is virtually free of allergy and asthma triggers.

The Classic 405 delivers high performance thanks to HEPASilent™ technology, which combines electrostatic and mechanical filtration technologies. This combination, pioneered by Blueair delivers high Clean Air Delivery Rate (CADR) with whisper-silent operation and high energy efficiency. In fact, the Classic 405 works so quietly that you might have to check to make sure it’s switched on. And on its low setting, the Classic 405 uses about as much electricity as a light bulb.

The Wi-Fi enabled Blueair Classic 405 air purifier is just right for a medium-sized room that's up to 434 ft2 (40 m2). We are proud to say that it was rated Best in Test by the independent Nordic test institute Testfakta. The institute gives the Classic 405 the highest overall score for its superior air purification performance both at maximum speed and at the low noise setting (up to 37 db).


  • Advanced Purification for 365 square feet / a large bedroom
  • Removes 99.97% allergens, pollen, dust and pet dander
  • Optional SMOKE REMOVAL FILTER to remove smoke and chemical pollution
  • Energy Efficient
  • Extremely Quiet
  • Best in Class Ranking!


Swedish design, Advanced Air Purifier uses 3-stage mechanical and electrostatic filter to capture 99.97% of impurities down to .01 microns in size with an average CADR (Clean Air Delivery Rate) of 300cfm.


Wi-Fi connectivity:

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



This HEPA Air Filter can help relieve

  • Seasonal Allergies - Pollen Allergies - Dust Allergies
  • Nasal Congestion - Itchy Eyes - Sneezing - Asthma
  • Dust and Dust Mites on your furniture
  • Mold Spores developing in your home
  • Pet Dander - Pet Hair - Pet Allergies
  • Bacteria and Virus growth
  • Particles floating in the air and into your nose



Room Size 434 square feet
Colors Silver
Dimensions 23" x 20" x 11"
Weight 33lbs
Speeds 4
Airflow Rate 75-280 CFM
CADR Smoke 280, Dust 300, Pollen 300
Power 15-90 watts
Noise Level 32-52 dB(a)
Air Exchanges Per Hour 5 assuming 8-foot ceilings
Casters No (handles)
Filter Replacement Indicator YES




  • HEPASilent™ Technology allows cleaner air at a faster rate
  • Compact design fits almost anywhere
  • Quiet Fan
  • Steel Construction
  • 3-stage mechanical and electrostatic filter
  • 99.97% effective at removing particles down to .01 microns in size
  • Clean air delivery rate of 300cfm
  • Removes allergens, pollen, dust, pet dander, ozone, and mold spores
  • Highly advanced Swedish design is energy efficient
  • Best in Class Ranking by independent testing facilities
  • Extremely Easy Maintenance! Simply open the side, slide out filter and replace every 6 to 12 months
  • Filter Change Indicator

How Does The Blueair Work?

Blueair Air Purifiers use a revolutionary combination of advanced filter media and an encapsulated ion particle charging chamber that produces batter results than either mechanical or electrostatic technology alone.

Using a non-toxic polypropylene filter that contains millions of ultra-thin fibers, the Blueair traps tiny particles as they pass through filter pleats.

These purifiers eliminate bacteria, viruses and mold naturally, without chemical additives and reduce more dirt and dust than comparative filters..

Using a patented 3-Stage HEPASilent™ Technology, the Blueair Filter 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.



Blueair Process of Purification

  1. Air is pulled in through the backside of the purifier
  2. Air passes over the pre-filter grabbing large particles like hair and dander
  3. Air then passes through the electrostatic HEPA filter to capture ultra-tiny particles like poolen and dust
  4. Air then travels into the ionizing chamber where it becomes charged with negative ions to kill bacteria and viruses
  5. Finally, Fresh Clean Air is released through the top of the purifier and into your air!


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.




Extremely Quiet Filter

Sophisticated materials like sound muffling steel and precision engineering allow the filter to clean indoor air without excessive noise.

On the lowest setting, these purifiers emit no more sound than a desktop computer.


SurroundAir™ Technology Reduces Fan Draft

1-surround-air.jpgInstead of discharging a windy stream of filtered air, the Blueair SurroundAir™ System diffuses air gently through an area six times greater than the average air cleaner.

By spreading out the output of air, Blueair purifiers achieve maximum purification with little to no noticeable draft.



Energy Efficient and Environmentally Friendly

  • Extremely low power usage means you can run this purifier 24/7 without a jump in energy cost.
  • 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.

energystar2.jpgThis 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 uses a special powder coat finish that produces no chemical out-gassing; great for those with Chemical Sensitivity.


5 Year Extended Limited Warranty After Registration

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). Please note that if you do not register your purifier, the warranty maintains its standard 1 year status.


Quality Design

1-features.jpgNot only is the Blueair 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.

This new and improved unit also comes with a built in filter change indicator letting you know when it's time to replace the filter! Includes one set of filters with purchase.






Purchase the Optional DualProtection™ Filter Today!

All Blueair air purifiers are designed to add the optional Gas & Odor DualProtection™ Filter to remove harmful smoke, gaseous contaminants, odors, VOC's, carbon monoxide, ethylene oxide, ozone and cigarette and cigar smoke along with all the other contaminants listed above.

By adding the optional Gas & Odor DualProtection™ Filter, you decrease the airflow of the purifier but increase the range of particle removal overall. Please note that you can always choose this Optional Gas & Odor Filter in the future and easily install it.





5 Year Limited 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). Within the first 30 days of purchase Blueair will replace the defective unit at no charge to you and reimburse any shipping charges. After 30 days, Blueair's obligation and liability under this Limited Warranty is limited to repairing or replacing (at its sole discretion) the defective unit and paying the freight cost of returning the unit to you. The Limited Warranty does not cover replacement filters.

8 Reviews Hide Reviews Show Reviews

  • 5
    Three Stages to Blueair Air Purifier

    Posted by Louise on 16th Jul 2013

    I trust this Blueair air purifier because of its three-stage filter mechanism. My old purifier only had an electrostatic filter. Not only did it not catch everything, I had to change the filter pretty often because it would clog up. The three stages of this Blueair, on the other hand, require a lot less maintenance and are far more effective than the single filter. I didn't think I could tell a difference in air quality, but I can smell it!

  • 5
    If You Couldn't Tell By All the Air Cleaner Reviews...

    Posted by Lindsay on 16th Jul 2013

    The air cleaner reviews here don't lie. This is one great air purifier, at least it has been for me. The filters almost never need replacing, but you can certainly tell that this system is being quite efficient. I find myself sneezing and coughing a lot less, that's for sure. It's pretty quiet, too, so we can run it all day without really noticing.

  • 5
    Blueair Air Cleaner Kisses Allergies Goodbye

    Posted by Unknown on 3rd Apr 2013

    OK, so my allergies are still there, but this Blueair air cleaner makes sure I don't have to suffer from them while I'm in my own house. It also does a good job of getting rid of nasty odors. I can tell the difference in air quality in the rooms that have this air cleaner.

  • 4
    Three-Part Blueair Air Cleaner is Efficient and Effective

    Posted by Unknown on 4th Mar 2013

    I was a little turned off by the size of this Blueair air cleaner at first, but now I don't mind. It's big because it has a three-stage filter that works on a few different levels, so the Blueair air cleaner really does purify your home environment like no other. The Blueair air cleaner is a little louder than your average fan, but it's worth it for the amount of crap you can get out of your air when you use it.

  • 4

    Posted by Unknown on 17th Apr 2012

    Great performance, louder than a fan.

  • 5
    Big Bulky and Works Great

    Posted by Susanne on 4th Apr 2012

    I liked the fact that it was a big bulky machine when I bought it because those little towers don't seem like there even big enough to do anything. Got it, started using it and have been happy ever since. Works good.

  • 4
    Just what the doctor ordered

    Posted by PL on 27th Mar 2012

    After talking about alternative options for helping my severe allergies, my doctor recommended buying a purifier. I went online and found this website and then called to talk to the sales people. They were incredibly helpful and talked me through the right purchase. I really like this purifier but I wish it covered more space. It seems like it should cover more square footage for the money but for my bedroom it works great. So, my only complaint is that I think they should make them to fit a larger room without making it much more expensive.

  • 4
    Blueair 403

    Posted by Brigit Nitschke on 18th Feb 2011

    I have 2 cats and 3 dogs, a 5000 square foot home and this unit took care of this entire home. You do not smell animals, litter boxes, etc.... My house has an air to it that it never did. Fresh air inside, what a concept! I suggest to everyone to get a unit, you will know exactly what I am talking about within hours of having it plugged in.
    Thank you