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Is this filter right for you?
This filter is only compatible with the Blue Pure 311+ Auto, not the Blue Pure 311.
You can identify whether your air purifier is the 311+ Auto an LED air quality indicator light on the front. The Blue Pure 311 has no LED light on the front.
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Extra protection against allergens
Blueair's AllergenBlock¹ technology reduces your exposure to pollen, pet dander and dust allergens, by neutralizing over 90%² of their sneeze-inducing properties once caught on the filter.
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Captures airborne particles, including pollen, dust and pet dander allergens
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Neutralizes² over 90% of the allergen properties that can trigger discomfort
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Traps light household odors from pets, cooking and smoking
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Dirty filters clean the air less effectively
We recommend replacing your air purifier filter about every 6 months when used 24 hours a day.
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Genuine Blueair replacement filter
Protect your air purifier from damage caused by unofficial filters.
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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.
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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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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.
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Filter TypePolypropylene fibers free of chemicals and binders with activated carbon mesh. Naturally anti-bacterial. Fiber shedding resistant.
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Dimensions(HxWxD)12.1 x 20.7 x 3.1 in
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Product weight9.5 lbs
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Recommended filter change6 months (4,380 hours)
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Number of filters1
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This filter is compatible with the Blue Pure 311 Auto.
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.
1 AllergenBlock refers to inanimate allergens (e.g., pollen, dust and pet dander)
2 deactivation testing of pollen (Cry J1), pet dander (Feld1 & Can f1) and dust mite matter (Der f1) on the filter media in 60 mins.
3 A 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.