A composting toilet is an eco-friendly sanitation system that converts human waste into compost through natural processes. It typically uses little to no water, making it a sustainable alternative to traditional flush toilets. The waste is collected in a separate chamber where it decomposes, aided by aerobic bacteria and sometimes added materials like sawdust or peat. These toilets are often used in areas without sewage systems, such as remote cabins or eco-friendly homes. They can also be found in public restrooms and are popular in sustainable living practices. Proper maintenance ensures that the composting process is efficient and odor-free.