As a leading manufacturer of air purification products, we are proud to offer our True H13 HEPA Air Purifier Filter F 114290, designed specifically for use with Winix U450 Air Purifier. Our advanced filter is made with high-quality materials and has been rigorously tested to ensure maximum effectiveness in capturing pollutants and allergens from the air. With its superior filtration technology, our replacement filter can capture particles as small as 0.3 microns, including dust, mold, pet dander, and pollen, promoting clean and healthier air for you and your family. Trust in our expertise as a factory in delivering top-of-the-line air purification solutions.