Do it Efficiency Rated Allergen Plus Furnace Filter, 14 x 14 x 1 in. is a high-performance HVAC air filter designed to significantly improve indoor air quality. With a MERV 8 efficiency rating, this filter is 15 times more effective than standard fiberglass filters, capturing microscopic particles that can stain walls and furnishings while helping to reduce seasonal allergy symptoms. It provides reliable protection against common airborne irritants such as ragweed pollen, mold spores, dust mite debris, pet dander, and dust or lint. The filter’s low airflow resistance helps save on energy costs while ensuring your furnace and air conditioning units remain well protected. Built to last up to 90 days, this blue-labeled filter a practical and efficient solution for maintaining a healthier home environment. Model Number: 448019