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Accurate filter lifetime tracking
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$69.99
$69.99
Blue Pure 211+ Auto button is located on top, while Blue Pure 211+ button is located at the front.
Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
Dirty filters clean the air less efficiently. Sign up for a filter subscription and get fresh filters delivered right when you need them.
Main Filter
Captures airborne particles including, PM 2.5, pollen, dust mite matter allergen & pet dander allergen
Activated Carbon
Traps light household odors from smoke, cooking odors and more
The Blue Pure 211+ Auto is certified to clean the air in a 550 ft² room 4.8 times per hour, with a CADR of 353 cfm for smoke and 380 cfm for pollen - performance figures that depend entirely on using a genuine, correctly fitted replacement filter. Fitting a non-Auto filter reduces these CADR values and voids the warranty. The 211+ Auto operates on Auto mode, using an integrated particle sensor to adjust fan speed in real time based on detected pollution levels, running from a whisper-quiet 23 dB on low to a modest 56 dB on high - roughly the volume of rainfall. Blueair's proprietary RealTrack algorithm tracks the remaining filter lifetime based on fan speed, usage time, and pollution levels, alerting you when replacement is due so CADR performance never degrades unnoticed. This Particle + Carbon filter is the only replacement certified to maintain those figures cycle after cycle.
This filter is compatible with the Blue Pure 211+ Auto model only. If used with the standard Blue Pure 211+ model the clean air delivery rate (CADR) will decline.
If the position of the main button is on the top of the air purifier, you have a 211+ Auto model and this filter is compatible.
A filter change indicator light that will alert you when it's time to replace the filter. You can also check the status via the Blueair app for models with smart capabilities.
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.
No, Blueair filters are less dense than traditional HEPA filters, allowing our air purifiers to be quieter and more energy-efficient. Instead of HEPA filters, we use a combination of electrostatic and mechanical filtration that we call HEPASilent™ technology to achieve the same level of filtration efficiency - with less energy and noise.
The Blue Pure 211+ Auto achieves a CADR of 353 cfm for smoke and 380 cfm for pollen. Using a genuine replacement filter is required to maintain these AHAM-certified CADR performance levels.
No, this filter is designed exclusively for the Blue Pure 211+ Auto model. Using it in the standard 211+ reduces CADR performance. Confirm your model by checking if the main button is on top.