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

Blueair GENUINE FILTERS: for Blue Pure 211i Max air purifier; blueair original Blue Pure F2MAX replacement filter for 211i Max is designed for optimal performance; Not compatible with 221 (B0792DP87L) and 3610 (B09M467BFP) LET'S CLEAR THE AIR SMARTER: Get more out of your filter; our proprietary RealTrack algorithm calculates the life of the filter based on actual usage and pollution level and tells you when it needs to be replaced within 9 months; subscribe and save up to 15 percent on automatically delivered filters when a replacement is needed LET'S CLEAR THE AIR FASTER: The HEPASilent dual filter technology delivers clean air faster and consumes less noise and energy than HEPA filtration alone MAKE THE AIR CLEAN BETTER: Removes at least 99.97 percent of tiny air particles such as viruses and smoke down to 0.1 microns and traps pet hair, pollen, mold allergens and dust; charcoal filter traps light household odors from smoking, pets and cooking MOST AWARD-WINNING AIR PURIFIER BRAND IN THE USA: Independently tested for performance, zero ozone; aHAM Verified for Performance (CADR); Quiet Mark Certified; ozone safety standards certified by CARB; zero ozone verified (