Arten (Objekte): Block Air-intakes-and-outlets. Download in Revit (rfa, rvt), Archicad (gsm, ifc), Autocad (dwg, dxf), 3ds max, Artlantis (aof), Sketchup (skp) und c4d, 3dm, mcd.

https://www.polantis.com/de/objects/types/air-intakes-and-outlets