Open Box New.  Filter sealed in plastic.  Box distressed.

See photos for visual confirmation.

Upgrade your air purifying game with this Blueair Particle + Carbon Replacement Filter, designed to fit Blue Pure 411, 411+, and 411 models. The filter, made with activated carbon filtration technology, guarantees to eliminate harmful pollutants and reduce unpleasant odors. Available in a pleasing blue color, this pleated filter comes with one number in a pack, and the carbon filter media is sourced from Sweden. It is an ideal replacement filter for your air purifier.