This specific 3D model, "Modern Bathroom Low-poly 3D model 2", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
STL (Stereolithography, filesize: 181 MB), OBJ (OBJ, filesize: 396 MB), BLEND (Blender, filesize: 577 MB)