Blue Pure 211+ Auto Particle + Carbon Filter

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.

Once made, the only thing this fully recyclable filter adds back to the environment is clean air. Check your local recycling facilities for availability and further guidance​.

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.

This filter is compatible with the Blue Pure 211+ Auto model only. If used with the standard Blue Pure 211+ model or Blue Pure MAX, 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. 

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.

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Often, the weight of carbon in a filter is considered when evaluating an air purifier’s ability to remove smoke-related pollutants from the air. While the presence of activated carbon is important to neutralizing odor, the efficiency and airflow of the air purifier should also be considered. This is because smoke from tobacco, wildfires and other sources contains fine particles, harmful chemicals and volatile organic compounds (VOC), as well as annoying odors.

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.