Blueair Blue Pure 211i Max Original Replacement Filter, F2MAX, Fits Air Purifier

BLUEAIR ORIGINAL FILTER: For Blue Pure 211i Max Air Purifier, Blueair Genuine Blue Pure F2MAX Replacement Filter for 211i Max is designed for optimal performance, NOT compatible with 221 B0792DP87L and 3610 B09M467BFP Let's clean the air smarter: Get more from your filter our exclusive RealTrack algorithm calculates filter life based on actual usage and pollution levels and tells you when to replace it within 9 months Subscribe and save up to 15 percent on automatically delivered filters when replacement is needed CLEANING THE AIR FASTER: HEPASilent dual filtration technology delivers clean air faster and consumes less noise and energy than HEPA filtration alone CLEAN THE AIR BETTER: Removes at least 99.97 percent of tiny airborne particles like viruses and smoke up to 0.1 micron, and captures pet dander, pollen, mold allergens and dust, carbon filter retains light household odors from smoking, pets and kitchen