Filtretre Allergen Defense 1000/1085 MPR Furnace Filter, 16" x 20" x 1" is designed to enhance the air quality in your home by capturing a broad range of particles and allergens. This filter works seamlessly with central heating and cooling systems, ing them into whole-home air filtration units. It efficiently traps particles of various sizes, from larger ones like lint, pollen, dust, and pet dander to smaller particles such as smoke and smog. This comprehensive filtration helps reduce allergens and promotes healthier air throughout your living space. With a Microparticle Performance Rating of 1000/1085, this filter is highly effective at capturing common airborne allergens and pollutants. Regularly replacing your HVAC filters with Filtrete Allergen Defense filters ensures your home maintains cleaner, fresher air for you and your family. Model Number: 9800-4