Compatible with extractor hood models for Bosch, Siemens, Neff, Gaggenau, and Constructa, such as Siemens HZ9VRCR0 17004796, Bosch HEZ9VRCR0 17004805, Neff Z821VR0 17004806, Gaggenau CA282111, and Constructa CZ9VRCR0 17006669. Refer to the image for compatible models. Functionality: The activated carbon filter efficiently purifies the air by capturing odors generated during cooking, helping maintain fresh kitchen air. Recommendations: The recirculating air activated carbon filter is a consumable item. It is recommended to replace it every 6 to 12 months based on usage frequency. Product size: Each filter measures 193 x 75 x 35 mm and is designed for easy installation. Box contents: 4 replacement activated carbon filters. When selecting this product, please verify the dimensions to ensure compatibility with your appliance. Detailed specifications and features are provided in the title and product details. We aim for complete customer satisfaction. If you have any questions regarding this item, feel free to reach out for assistance.