The H13 Grade True HEPA Air Purifier Filter Fit for Winix C555 Air Purifier Replacement 116131 Parts is a high-quality replacement filter designed to keep your indoor air clean and healthy. Made from premium materials, this filter is designed to effectively capture airborne contaminants such as dust, pollen, smoke, and pet dander. With its true HEPA technology, it can remove up to 99.97% of particles as small as 0.3 microns. This product is designed to fit perfectly with your Winix C555 air purifier, ensuring optimal performance and longevity. As a factory, we pride ourselves on producing top-quality products at affordable prices. Trust us to provide you with the best replacement filter for your air purifier.