http://articles.mercola.com/sites/articles/archive/2007/01/25/a-warning-about-new-washing-machines-and-nanotechnology.aspxIn a reversal from previous rulings, the U.S. EPA has determined that clothes washing machines using silver ion disinfectants need to be registered as a pesticide. The EPA has not previously regulated nanomaterials such as silver ions, although they areenCommunityServer 2008.5 SP1 (Build: 31106.3070)