Blue Pure 121 Particle Filter 

Compatible with Blue Pure 121
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Uncompromised particle removal

Particle filters minimize allergy triggers, viruses, and bacteria for a healthier home environment with high filtration efficiency. Together with HEPASilent™ filtration technology, our particle filters remove 99.97% of airborne particles down to 0.1 microns, including pollutants such as pollen, dust, pet dander, mold spores, viruses, bacteria, fine smoke particles and more.

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Genuine performance, superior quality

Unlike generic look-a-likes, genuine Blueair replacement filters are specifically designed to maintain superior performance over time and ensures your warranty remains intact.

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Replacement is easy

When it's time to replace your filter (about every six months), start by unplugging your air purifier. Gently press the release buttons on either side until you hear a click, and lift off the top. Remove the old filter and replace it with a new one. Replace the top portion of the air purifier -it will click when it's in place- and plug back in. Easy.

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Less dense filters make the difference

Our unique HEPASilent™ filtration technology allows our filters to be less dense. Less dense filters require less air pressure— resulting in quieter and more energy efficient air purifiers.

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Remove allergens & germs

Particle filter removes airborne pollutants and allergens such as pollen, dust, pet dander, mold spores, bacteria, viruses, fine smoke particles, and more. 

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Prevent bacteria & mold

Filter fibers resist bacteria and mold growth, to ensure you'll never put bacteria and mold back into the air.

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Recyclable

This filter is recyclable, so the only thing you're adding back into the environment is clean air.

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6-month filter life

To maintain optimum performance, we recommend changing your filter about once every 6-months when used 24 hours a day.

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Traps particles for good

The filter structure traps even the smallest particles and resists clogging to maintain maximum airflow.

  • Filter Type
    Polypropylene fibers free of chemicals and binders. Fiber shedding resistant.
  • Dimensions(HxWxD)
    495 x 295 x 295 mm
  • Product weight
    3.3kg
  • Filter frame material
    Paper
  • Filter recycling
    Yes, please check your local recycling facility for availability.
  • Recommended filter change
    6 months (4,380 hours)
  • Number of filters
    1
What Blueair models are compatible with this filter?

This filter is compatible with the original Blue 121 model.

What is a filter subscription?

Purchasing a filter subscription saves you time and effort. 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.