Wool consist of sulfurous keratins and can be attacked by molds, that secret proteolytische enzymes, if the material-humidity amounts at least 20 per cent until 30 per cent, what an atmospheric humidity of about. 95 per cent needs. The fungus-growth is favored by fat and soap-remains additionally. Out of wool was insulated:
Chaetomium globosum, Cladosporium herbarum and Penicillium lilacinum.
Certain spores of bacterias could contain in the imported Rohwolle, that goes until the final processing through many hands. This can lead scatter to illnesses, for example woolsorters' disease.