The Filtrete Allergen MPR 1600 air filter is designed to capture bacteria and viruses, providing clean and fresh air for your home. Made in the United States, this filter is effective in removing allergens and improving indoor air quality. With a size of 14x14x1, this 4 pack of filters ensures that your heating, cooling, and air systems are running efficiently and effectively. The white color adds a sleek and clean look to your home while the Filtrete brand guarantees quality and reliability.