Photo 1 of 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ plus Air Cleaner Purifier Series, Foldable Particle and Activated Carbon Filter, True Filter

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Photo 1 of 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ plus Air Cleaner Purifier Series, Foldable Particle and Activated Carbon Filter, True FilterPhoto 2 of 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ plus Air Cleaner Purifier Series, Foldable Particle and Activated Carbon Filter, True FilterPhoto 3 of 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ plus Air Cleaner Purifier Series, Foldable Particle and Activated Carbon Filter, True Filter