For full functionality, we recommend downloading the original file.The converted file is intended only for use in the web viewer. In the source file, the following are fully preserved:✔ original scene hierarchy✔ complete materials without reduction✔ proper texture maps✔ correct object namesIf you are going to integrate the model into a project, download the Original format.A modular 3D model of an HVAC duct system designed for flexible use in industrial visualization architectural projects and detailed environment design. Each element is fully UV unwrapped and includes Material IDs making it easy to customize materials and textures. With optimized geometry and clean topology this modular duct set is ideal for building customizable ventilation systems in both interior and exterior scenes using Blender or other 3D workflows.