I accidentally purchased this and have opened the package, but it's unused. Instant purchase is welcome ⭕️ Since I am also selling on other sites, it will be first-come, first-served. HEPA filter boasts a 99.97% removal rate, compatible with many models, and designed for long life. - Model Name: FZ-A40SF - Compatible Models: KC-A40-W, KC-B40-W, KC-B40P1 - Filter Type: HEPA filter - Removal Rate: 99.97% - Size: 23cm x 37cm x 4cm - Usage Period: Approximately 2-5 years - Materials: Polypropylene, Polyester, Activated Carbon