Compatibility Our C545 Replacement Filter with H13 True HEPA Filter is compatible with Winix C545 Air Purifier, replacing parts 1712-0096-00 and 2522-0058-00. Please confirm your purifier model matches these parts before purchasing. Filtration performance Uses a composite wet framework filter material to capture 0.3 micron dust and 99.97% of airborne particles such as pet dander. The high-efficiency activated carbon layer reduces odors from pets, cooking, smoking, and volatile organic compounds. Bonded with high-quality foam adhesive to maintain elasticity and extend service life. Package contents and size Includes 2 Pack H13 True HEPA Filters and 8 Activated Carbon Filters for Winix C545 Air Purifier, replacing parts 1712-0096-00 and 2522-0058-00. Size: 13.1 x 10.9 inches. HEPA filters should be replaced every 3-6 months, or according to air quality and frequency of use. Replacement convenience True HEPA filter replacements are easy to change and operate, with no tools required, allowing you to replace old filters in minutes. Use scenarios - Home with pets: reduce pet dander and odors for cleaner indoor air. - Small office or classroom: improve air quality for better focus and comfort. - Kitchen or smoking area: minimize odors and VOCs for a more pleasant environment.