Compatible with extractor hood models for , , Neff, Gaggenau, and Constructa, such as HZ9VRCR0 17004796, 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 caused by cooking, helping maintain fresh air in the kitchen. Recommendations: This recirculating air filter is a single-use consumable item. It is recommended to replace it every 6 to 12 months depending on usage frequency 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. Please verify the dimensions and compatibility of the product before purchase to ensure suitability for your appliance. Detailed product information, including features and specifications, is provided in the title and description. Customer satisfaction is our priority. For any questions or assistance regarding the product, please reach out through Amazon’s messaging system.