Designed specifically for the Blue Pure 311i Max.
Find the name of your air purifier on the label inside your air purifier.
Removes up to 99.99% of wildfire smoke* along with extra protection against other wildfire emissions such as toxic gasses, smog, and odors**
The first layer of protection, catches larger particles from the air.
Removes airborne allergens, like pollen, dust mite matter allergen, pet dander, germs, mold, bacteria & viruses.
Traps strong household odors from smoke and wildfire particles.
lifetime status
Blueair's proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time, and pollution levels.
replacement filter
Protect your air purifier from damage
caused by unofficial filters.
With the unique filter design at least 99.97%³ of airborne particles, even down to 0.1 microns, are removed, while using less energy and producing less noise.
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.
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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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 311i Max air purifier.
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 A 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.
*Compared to standard in-unit filter. Based on removal testing of particles 0.4-0.7um in 60min in a 30m3 room. Performance may vary.
**Tested on benzene, toluene, nitrogen oxide, sulfur dioxide in 30 min.