Unused and unopened. I made a mistake in ordering the wrong size, and the return fee is high, so I'm listing it on Mercari. Here are the product features: MANN-FILTER Bio-Functional Cabin Air Filter, featuring FreciousPlus technology. - Brand: MANN FILTER - Model: FP 1919 - Filter Type: Bio-Functional Cabin Air Filter - Technology: FreciousPlus - Filter Structure: Multi-layer structure - Packaging: Unopened Size (length x width x height (mm)): 213 x 193 x 30 3-layer filter for clean and comfortable air in your car! 1: Dust Removal Layer Blocks PM2.5 with high air filtration performance. Antibacterial treatment inhibits the growth of bacteria and mold. 2: Activated Carbon Layer Uses the industry's highest level of high-performance activated carbon (350g/). Powerful deodorization, exhaust gas adsorption. 3: Polyphenol Layer Suppresses allergens such as cedar pollen and dust mites. Thank you for viewing. #AirConditionerFilter #CleanFilter #FreciousPlus #ForJapaneseCars