Wetlands construídos are man-made wetlands that are built to help protect our environment. They can be as small as a pond or as large as a lake. Wetlands construídos help keep our water clean and safe by trapping dirt, silt, and other pollutants in the water. They also help improve air quality by taking in air pollutants and letting out clean air. Wetlands construídos also provide homes for many kinds of plants and animals, making them important habitats.