For production-ready use, we recommend downloading the source format.The converted file is intended only for use in the web viewer. In the Original format, the following are fully preserved:✔ native scene structure✔ unsimplified materials✔ accurate texture maps✔ correct object namesIf you are going to integrate the model into a project, download the source file.Air coolers make use of a simple air moving system that pulls fresh air from the outside and drives it through the wet cooling pads.