For the purpose of providing open and transparent customer information, all environmentally relevant information for the most important Wilkhahn ranges is clearly summarized in data sheets that are prepared following ISO 14020 ff. This is where an overview of current international quality and environmental standards and certifications can be found amongst other information, as well as evaluations and possible credit points for ecological building rating systems, such as LEED (U.S. Green Building Council´s Leadership in Energy and Environmental Design), Green Star (Australia) and GREENGUARD.