BLUEAIR Blue Pure 121 Genuine Replacement Filter, Particle and Activated Carbon, Fits Blue Pure 121 Air Purifier

COMPATIBLE WITH BLUE PURE 121 plus: Blueair Combination Particle plus Carbon Replacement Filter compatible with Blue Pure 121 air purifiers, FILTERS BUILT TO LAST: Using a 360-degree air intake and up to 4x the filter surface area, the Genuine Blue Pure 121 Particle and Activated Carbon Filter lasts on average 6 months to a year; optimizing air flow and performance over time, RECYCLABLE: Please check your local recycling facilities for availability, AUTOMATED FILTER REPLACEMENT: Subscribe and save up to 10 percent on auto-delivered filters when replacement is needed; We recommend replacing your filter about every 6 months when used 24 hours a day, REMOVES EVEN TINIEST AIRBORNE PARTICLES DOWN TO 0.1 MICRON: Particle filter removes airborne particles such as pollen, pet dander, bacteria, mold, viruses, and dust from your indoor environment, TRAPS HOUSEHOLD ODORS: A layer of carbon mesh traps light household odors, smoke, chemicals, and volatile organic compounds (VOC)