The Filtrete 12 x 24 x 1, 1900 MPR Premium Allergen, Bacteria and Virus Air Filter is a high-quality product from 3M designed to capture airborne contaminants such as bacteria and viruses. This cube and box filter is white in color, making it easy to install in your HVAC system. With its premium MPR rating, this filter ensures that your air is clean and healthy, providing relief for those suffering from allergies or other respiratory issues. Free shipping!!