Is this the right filter for you?
This filter is only compatible with the Blue Pure 311 Auto. It is not compatible with Blue Pure 311, 411, 411+, 411 Auto.
You can identify whether your air purifier is a Blue Pure 311 Auto if it is 20.5” in height. The 311 is 18.5” in height and the 411 series are 17” or shorter.
Particle removing filtration, air cleaning carbon, all in one filter
When used as part of our HEPASilent™ filtration process, the Particle + Carbon filter provides protection against odors, chemicals, gases and 99.97%* of airborne pollen, dust and germs*.
Designed for Optimal Performance
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.
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.
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.
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.
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.
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.
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Filter TypeCarbon + Particle filter. Activated coconut shell carbon pellets in honeycomb envelope. Non-woven Polypropelyne fibers. Free of chemicals and binders. Fiber shedding resistance.
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Dimensions(HxWxD)20.1 x 20.7 x 3.1 in in
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Product weight7.28 lbs
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Filter frame materialABS
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Filter recyclingYes, please check your local recycling facility for availability.
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Recommended filter change6 months (4,380 hours) when used 24 hours a day
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Number of filters1
This filter is compatible with the Blue Pure 121 model.
Program members get 15% off on every filter and exclusive product perks.
This filter features highly-porous, activated carbon pellets for extra protection against harmful gaseous pollutants like odors, smog, exhaust, volatile organic compounds (VOC), smoke odors, and chemicals. The Combination Particle + Carbon filter uses an activated carbon mesh sheet, designed to remove light household odors and chemicals.
Join free, decide how your filter is monitored, and when new ones get sent. Leave anytime.
Seeing a new filter at your door is like a celebration of your choice to breathe the best air.
Purchasing a filter subscription saves you 15% on all future replacement filter orders + free shipping. 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.
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 on E.coli, Influenza A (H1N1), A.niger with minimum reduction of 99.9% in 60min