Compatible with: Extractor hood filter for Bosch, Siemens, Neff, Gaggenau and Constructa, e.g. Siemens HZ9VRCR0 17004796, Bosch HEZ9VRCR0 17004805, Neff Z821VR0 17004806, Gaggenau CA282111 and Constructa CZ9VRCR0 17006669. Please see the picture for suitable models. Functionality: The activated carbon filter efficiently filters the air, neutralizes cooking odors, and helps maintain fresh air in the kitchen. Recommendations: The recirculating air activated carbon filter is a single-use consumable item. It is recommended to replace it every 6 to 12 months depending on usage and cooking habits. Product size: The active carbon filter measures 193 x 75 x 35 mm and is easy to install. Box contents: 4 replacement filters. When purchasing, please verify the size and compatibility to ensure the product meets your requirements. Detailed product information, including features and specifications, is provided in the title and description. We want you to be completely satisfied with your purchase. If you have any questions or concerns, please . We are here to help and will do our best to assist you.