Gift. Selling because I don't plan to use it. New, unopened. Photos taken from the bag. Personal unwanted item, so I'm listing it as "Like New". Simple packaging. Yu-packet Post (anonymous shipping). Product Name: KNME098A4 Humidifier Filter 99A0550 Humidifier Air Purifier Filter ACK70X, ACZ70X, ACZ70Z, MCK70X, MCK70XN, MCZ70X Humidifier Replacement Filter Compatible 1 piece Reference Price: 1980 yen Brand: WINYES Material: Polypropylene, Polyester, 3D Knitted Polyester Product Dimensions: 23.9 cm length x 23.9 cm width x 0.9 cm thickness Compatible Devices: Air Purifier [Compatible Models] ACK70X, MCZ70YKS, ACZ70X, ACZ70X7, ACZ70Y, ACZ70Y7, ACZ70Z, MCK70X, MCK70XBK, MCK70XE8, MCK70XJ, MCK70XKS, MCK70XN, MCK70XY, MCZ70X, MCZ70XBK, MCZ70XE8, MCZ70XJ, MCZ70XKS, MCZ70Y, MCZ70YBK, MCZ70YE9, MCZ70YJ [Product Model Number] Compatible with Daikin air purifiers "KNME098A4" humidifier filter, blue: 1 piece, without frame, compatible product. Size: Approximately 239mm in diameter * approximately 9mm in depth. [Material] Polypropylene, polyester, 3D knitted polyester (fusion static type, can be washed). By bundling ultra-fine fibers, the water absorption performance is improved. [Excellent Humidification Efficiency] Excellent humidification capacity: Polyester's water absorption capacity, double circular mesh hole design, sufficient water and air flow, rapid evaporation of water vapor, humidification efficiency is increased, and you can overcome the dry season. [Replacement目安] Approximately 10 years. Can be washed and reused. The replacement time varies depending on how it is used and where it is installed. Replace when the humidifier filter is not clean or when you feel that the humidification amount (the rate at which water decreases) has decreased.