CERAMIC POT FILTERS for water:
- http://www.pottersforpeace.org/
- http://www.ceramicwaterfilter.org/
- http://stellar.mit.edu/S/project/ceramic-filter-mft/
- Executive Summary: Investigation of the Potters for Peace Colloidal Silver Impregnated Ceramic Filter - Report 1: Intrinsic Effectiveness
- Investigation of the Potters for Peace: Colloidal Silver Impregnated Ceramic Filter - Report 1: Intrinsic Effectiveness
- Executive Summary: Investigation of the Potters for Peace Colloidal Silver Impregnated Ceramic Filter - Report 2: Field Investigations
- Investigation of the Potters for Peace: Colloidal Silver Impregnated Ceramic Filter - Report 2: Field Investigations