Blue Pure 121 Replacement Filter, Particle and Activated Carbon, Fits Blue Pure 121 Air Purifier, by Blueair (Renewed)

• It is important to only use genuine Blueair replacement filters to maintain optimal performance and warranty. Filters that are not Blueair genuine will void your units warranty.
• GENUINE Blueair Replacement Filter for Blue Pure 121
• PARTICLE and HEAVY DUTY ACTIVATED CARBON filter reduces pollen, dust, pet dander, mold spores, bacteria, odor, VOCs, Tobacco smoke and other gaseous pollutants.
• RECOMMENDED to change filter once every 6 months, or dependent on usage.  This filter is eco-friendly and can be recycled after it’s changed.