Net Zero Water for drinking and household uses is an innovative approach that aims to make a household or community self-sufficient in water needs by harvesting and treating water on-site, thus minimizing reliance on external water supplies. This approach includes collecting rainwater through rooftop catchments or other surface systems, which is then stored and treated for safe use.

Additionally, air-to-water harvesting, a cutting-edge method, involves extracting water vapor from the air using dehumidification or condensation processes, even in arid regions. These collected waters, after proper filtration and purification, can be used for drinking, cooking, and other household needs, achieving a net zero water footprint by balancing water collection with consumption.