Leemone 311 Auto AllergenBlock Filter Compatible with Blueair Blue Pure 311 Auto Air Purifier, Blue Pure 311 Auto Filter Replacement, Activated Carbon Filter, 2 Pack

Perfect FitThe blue pure 311 Auto Series filter replacement is perfectly compatible with Blueair Blue Pure 311 Auto Air Purifier | AttentionIt is not compatible with Blueair Blue Pure 311 (Non-Auto) Air Purifier | 99.97% Filtration RateThe 311 auto filter replacement captures 99.97% of tiny airborne particles as small as 0.1 microns | High-quality MaterialsThe 311 auto filter is made of FSC-certified activated carbon powder. To maintain optimal filtration efficiency, please replace the filter every 6-9 months | Extend Air Purifier LifeThis 311 replacement filter can efficiently capture airborne particles. It keeps the machine running in optimal condition for a longer machine life | 24 hours After-sales ServiceWe provide 24/7 after-sales service, if you encounter any product problems, please feel free to contact us through our Amazon home page