A 650-square-foot area of grass produces enough oxygen to sustain an average human adult's needs. It also improves the condition of the environment by removing pollutants from the air.
Grass removes a large amount of carbon dioxide and other pollutants from the air while producing large quantities of oxygen. It produces more oxygen at a quicker rate than native plants due to its dense foliage and fast growth rate.
Grass absorbs water and pollutants from the air and filters them through its blades and roots, effectively cleaning the air and ground water. It also helps prevent erosion with its roots by acting as a binder for the soil.