Abstract3.1 Microbiology of Water Pasteurization3.2 Use of Solar Cookers for Drinking Water Production3.3 Devices Designed Specifically for Water3.4 Simple Devices from Common Materials3.5 Commercial Devices in Production3.6 Devices with Recovery Heat Exchange3.7 Water Pasteurization Indicators3.8 Multi-use Systems3.9 The Greenhouse Effect3.10 Use of SOPAS in Conjunction with SODIS3.11 SODIS and Titanium Dioxide3.12 SOPAS and SODIS Technology Evaluation