Blue Pure 311 Auto Series SmokeBlock Filter

Compatible with 311 Auto
$49.99
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Blueair Blue 311 AUTO filter on blue background

Particle removing filtration, air cleaning carbon, all in one filter

•Additional activated carbon removes 99.99%* of wildfire emissions for extra protection against smoke, toxic gasses, smog and odors.


Blueair Close up of Blue pure 311 auto filter with Genuine Filter replacement icon

Look-a-likes don't stand a chance

Genuine Blueair filters are specifically designed to enable more air flow through the filter media. When combined with electrostatic filtration this results in faster cleaning than traditional HEPA filtration.


Blueair Blue pure 311 auto air purifier showing all various layers of filtration

Keep your filter fresh and pollutants at bay

We recommend replacing your air purifier filter about every 6 months (when used 24 hours a day). That's because, just like a vacuum cleaner, over time air purifier filters can get clogged with pollutants, and even let unpleasant odors back into the room.


It's simple to replace in just a few quick steps, and easy to save with our filter subscription program.

Details
Blueair Image
Wildfire smoke

The ultimate tool against wildfire season. Additional activated carbon removes up to 99.99% of wildfire smoke* along with extra protection against other wildfire emissions such as toxic gasses, smog and odors**

Blueair icon for Minimizes unhealthy allergens and germs
Minimizes unhealthy allergens and germs

The particle filter layer helps to minimize the airborne particles that can trigger allergy symptoms, including pollen, dust, mold spores, pet dander, viruses, bacteria, and fine smoke particles.

Blueair icon- Keeps clean air flowing, resists clogging
Keeps clean air flowing, resists clogging

This filter's unique structure is designed to filter high volumes of air while trapping even the smallest particles. It maintains maximum airflow because it's engineered to resist clogging.

Blueair icon- less noise and energy
Less noise and energy

Our unique HEPASilent™ filtration technology allows this filter to be less dense, meaning it requires less air pressure. With it installed, your air purifier will operate quieter while using less energy.

Blueair icon-  Works 24/7, for six months straight
Works 24/7, for six months straight

To maintain optimal performance, we recommend changing your filter about once every 6-months when used 24 hours a day. Don't forget to save with our subscription program.

Blueair icon - Easy, earth friendly disposal
Recyclable

Check your local recycling facilities for availability and further guidance.


  • Filter Type
    Particle filter + Carbon sheet. Activated coconut shell carbon. Non-woven gradient Polypropelyne fibers. Free of chemicals and binders. Fiber shedding resistance.
  • Dimensions(HxWxD)
    10.2 x 10.2 x 12.8 in
  • Product weight
    0.75lbs
  • Filter frame material
    PP
  • Filter recycling
    Yes, please check your local recycling facility for availability.
  • Recommended filter change
    6 months (4,380 hours) when used 24 hours a day
  • Number of filters
    1
What Blueair models are compatible with this filter?

This filter is compatible with the Blue 311 Auto model.

What is a filter subscription?

Purchasing a filter subscription saves you 15% on all future replacement filter orders + free shipping and extends your limited 1-year product warranty to an extended warranty for as long as you remain a subscriber. At the time of purchase, the subscription will automatically schedule filter deliveries at the recommended six months. You can always adjust this timeframe from the 'My Account' section.



Learn more about filter subscriptions

Subscribe and stop thinking about filter quality

¹A flat shipping rate of $25.00 will be charged on filter shipments to Alaska and Hawaii. Additional charges may apply for shipments over 30 lbs.


*Tested to reduce E.coli and Influenza A (H1N1) with minimum reduction rate of 99.99% in 60min. 



**Tested on A.niger with minimum reduction rate of 99.9% in 60min.