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 designed for periodic replacement. It is recommended to replace the filter every 6 to 12 months based on usage frequency. Product size: The active carbon filter measures 193 x 75 x 35 mm and is easy to install. Box contents: 4 replacement filters. Please verify the product dimensions and specifications in the title and images to ensure compatibility with your appliance. We aim for complete customer satisfaction. For any questions regarding the product, feel free to reach out through Amazon messages for assistance.