Our True H13 HEPA Air Purifier Replacement Filter with Activated Carbon Compatible with Coway AP-2318P Replacement is made with high-quality materials and expert craftsmanship. As a factory-direct supplier, we are dedicated to providing our customers with reliable and durable air purifier filters at unbeatable prices. Our replacement filter features advanced H13 HEPA technology, which filters out 99.97% of particles as small as 0.3 microns. Additionally, our filter contains activated carbon, which effectively removes odors and harmful chemicals from your home or office. Keep your air clean and healthy with our premium replacement filter.