I bought this when it was first released and used it in my car with a child seat for two seasons! I think it's in beautiful condition, with no scratches or stains ⑅◡̈* There are no replacement filters or the original box ( ; ; ) There's a picture of the existing filter in the 7th image! I think it's in good condition, but please check it before considering! ◎Operation confirmed! From the official website: ■Product Name: airluv3 miffy edition (airluv3 Miffy edition) ■Color: miffy edition ■Size: 340×960mm ■Material: ・Surface (mesh): Polyester, polyurethane ・Back (bottom): Polyester ・Inner mat: Polyester, polypropylene