Blue Pure 311 Particle + Carbon FilterCompatible with 311; Not compatible with 311 Auto, 411 Auto, 411, 411+
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Is this the right filter for you?
This filter is only compatible with the Blue Pure 311. It is not compatible with Blue Pure 311 Auto, 411, 411+, 411 Auto.
You can identify whether your air purifier is a Bue Pure 311 if it is 18.5” in height. The 311 Auto is 20.5” 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*.
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 optimum 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.
Filter TypeParticle 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 10.9 in
Filter frame materialPP
Filter recyclingYes, please check your local recycling facility for availability.
Recommended filter change6 months (4,380 hours) when used 24 hours a day
Number of filters1
This filter is compatible with the Blue Pure 311 model
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.
While they look similar, our Blue Pure 311 is not the same air purifier as the Blue Pure 311 Auto, which features our upgraded auto-mode functionality and increased Clean Air Delivery Rate (CADR) performance. Due to the size difference, each respective model will have its own replacement filter and pre-filter accessories. All other features stay relatively the same.
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.
Pure Air Program members get 15% off on every filter, plus extended warranty, and exclusive product perks.
¹A flat shipping rate of $25.00 will be charged on filter shipments to Alaska, Hawaii, and Puerto Rico. Additional charges may apply for shipments over 30 lbs. A flat shipping rate of $5 will be charged on orders under $39 that are not part of filter subscription.
*Tested on E.coli, Influenza A (H1N1), A.niger with minimum reduction of 99.9% in 60min