Filtretre Allergen Healthy Living 1550 MPR Furnace Filter, 16" x 25" x 1" is designed to deliver superior filtration performance for your HVAC system. Featuring a Microparticle Performance Rating (MPR) of 1550, this filter effectively captures a wide range of airborne particles such as dust, bacteria, viruses, and allergens, helping to improve the air quality in your home. By reducing these contaminants, it promotes a cleaner, fresher, and healthier living environment for you and your family. This high-performance filter is an excellent choice for anyone looking to enhance indoor air quality. For results, replace the filter regularly following the manufacturer's guidelines to maintain optimal performance and ongoing air purification. Model Number: 2001-4