Complete HVAC air conditioner and ventilation duct set fully modeled with 3ds Max.All outdoor units indoor machines air ducts and fan units match full PBR metal plastic materials with high resolution industrial seamless textures.The equipment pack features neat uniform topology, optimized low-poly mesh, without broken surfaces or overlapping geometry.Ideal for architectural mechanical rendering, MEP design visualization, factory building scene, commercial construction animation and engineering presentation projects.Package includes original MAX source file, VR version, SL version, universal FBX, standard OBJ and BLEND format files.All format files have passed full import testing, support free secondary editing and all commercial project usage.