Blue air Pure 121 Carbon + Particle Filter

Genuine Blueair Pure 121 Particle + Carbon Filter

Ensure your Blue Pure 121 air purifier delivers the cleanest air possible with the official replacement filter. This all-in-one filter is the engine of your purifier, meticulously engineered to maintain its high performance, whisper-quiet operation, and industry-leading energy efficiency.

The HEPASilent™ AdvantageThis filter is designed for Blueair's unique HEPASilent™ technology, which combines electrostatic charging with mechanical filtration. This powerful combination allows the filter to capture 99.97% of tiny airborne particles down to 0.1 microns. Because this method is so efficient, the filter can be less dense, which means your purifier doesn't have to work as hard, resulting in less noise and lower energy use.

Complete 360° FiltrationThe Blue Pure 121's extra-large, 360-degree filter surface tackles pollutants from every angle.

• Particle Filter: The main filter media traps common airborne pollutants, including:

  • Allergens (pollen, dust, pet dander)

  • Mold and bacteria

  • Viruses

  • Fine smoke and PM2.5 particles

• Activated Carbon Layer: A layer of activated coconut carbon is integrated into the filter to absorb and neutralize light household odors, gases, and VOCs from:

  • Pets

  • Cooking

  • Smoke

  • Common household chemicals

Simple 6-Month Maintenance Replacing the filter is effortless. The lightweight, foldable structure can be swapped out in seconds—no tools required. For 24/7 operation, Blueair recommends a new filter every 6 months (4,380 hours) to maintain optimal airflow and filtration.