Do it Allergen Plus Furnace Filter superior air filtration with a MERV 8 efficiency rating, making it 15 times more effective than standard fiberglass filters. This high-performance HVAC filter captures microscopic particles that can stain walls and furnishings while helping to reduce seasonal allergy triggers. It provides reliable protection against ragweed pollen, mold spores, dust mite debris, pet dander, and dust/lint. Designed for low airflow resistance, it helps save on energy costs while safeguarding your furnace and air conditioning units. This filter lasts up to 90 days and features a distinctive blue label for easy identification. Model Number: