This is a new HDX 16x25x1 FPR 9 Superior Allergen Electrostatic Air Filter. It's designed to provide up to 90 days of airflow performance. The filter helps remove smoke, bacteria, dust, lint, pollen, allergens, mold spores, pet dander, and dust mite debris from your air.

It's still in its original, unopened packaging, ensuring it's in perfect, ready-to-use condition.