Blueair Air Purifier Classic 405 with Particle Filter


Filters room air at the industry-recommended rate of 5x an hour (or about every 12 minutes) in a 40 m² room to effectively lower particle levels and maintain a comfortable environment in master bedrooms, living rooms, and playrooms.

WiFi Enabled

The Classic 405 air purifier allows you to take full control of your indoor air quality with intelligent smartphone control and Alexa compatibility. 

Alergen and Germ Removal

Comes standard with a particle filter to remove airborne allergy and asthma triggers like pollen, dust, pet dander, mold, smoke, bacteria, viruses, and more.

The Secret Behind Powerful Filtration

Our unique combination of electrostatic and mechanical filtration that we call HEPASilent™ filtration technology sets us apart. The combination allows us to use filters that are less dense and require less air pressure than traditional HEPA filters without a loss in performance— resulting in quieter and more energy efficient air purifiers.

Blueair & COVID-19

The impact of the COVID-19 pandemic has caused us all to look at new ways of improving indoor safety, especially in our work environments. As staff return to the office, we can help protect against the spread of airborne bacteria and viruses.

Blueair air purifiers have not been tested for the removal of COVID-19, it is a new strain of Coronavirus that was discovered in late 2019 and does not yet have approved testing procedures in place. However, here is what we do know:

• Blueair air purifiers have been third-party tested for the removal of the most common viruses and bacteria with a clearance rate of over 99.99%. The tests included H1N1 influenza, Staphylococcus aureus, E-coli and Aspergillus

• Blueair's HEPASilent™ technology captures at least 99.97% of airborne particles down to 0.1 microns in size. This includes any viruses with a particle size of at least 0.1 micron. Corona viruses measure about 0.12 micron

• Not only do our air purifiers capture harmful airborne viruses and bacteria, but our proprietary HEPASilent™ technology actually kills germs. Internal tests measured 99% of germs were killed by Blueair Classic family* - leaving the bacteria and viruses unviable and unable to reproduce

* Based on internal testing of the Blue

Quiet Mark

Which Best Buy

Specification Dimensions (H x W x D)
590 x 500 x 275 mm

Product weight

Wi-Fi connectivity for remote control

On/off timer
Yes (via Blueair App)

Filter replacement indicator

Speed control options
1 - 2 - 3


Integrated air sensors

Energy consumption
15 - 90 Watts

Sound level
32 - 52 dB(A)

Air outlet

Air inlet

Recommended room size
40 m2

Air changes per hour (ACH)

Clean air delivery rate (CADR) - Pollen
510m³ per hour (300 cfm)

Clean air delivery rate (CADR) - Dust
510m³ per hour (300 cfm)

Clean air delivery rate (CADR) - Smoke
476m³ per hour (280 cfm)

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