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

COMPATIBLE WITH BLUE PURE 121: Blueair Extra Protection Combination Particle + 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 Blue Pure 121 Extra Protection Particle and Activated Carbon Filter lasts on average 6 months to a year; optimizing air flow and performance over time TRAPS STRONGER ODORS UP TO 2X FASTER: A layer of activated carbon pellets remove stronger odors, smoke, gases, and volatile organic compounds up to 2x faster RECYCLABLE: Please check your local recycling facilities for availability AUTOMATED FILTER REPLACEMENT: Subscribe & save up to 10% 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