BLUEAIR Genuine F2MAX Filter for Blue Pure 211i Max HEPASilent Technology, Particle + Carbon, Fits 211i Max Only (Not 211+ or 211+ Auto)

Lets clear the air. Blueair genuine filter for Blue Pure 211i Max (B0BN2MGV5H) air purifier. Blueair genuine Blue Pure F2MAX Replacement filter for 211i Max is designed for optimal performance; Not compatible with 211+ and 211+Auto. Get more out of your filter. Our proprietary RealTrack algorithm calculates filter lifetime based on actual usage and pollution levels and tells you when to replace within 9 months. Subscribe to save on auto-delivered air purifier filter replacement. *When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration. **Tested PM 2.5 (0.1 - 2.5 microns) up to 90min in a 30m3 room. Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.