3D printers have become increasingly available for use at home or in smaller businesses, and so the demand for cheap materials continues to rise.3D printers use only the amount of material they need by building objects layer by layer. However, it is the accessibility of 3D technologies which is a leading concern where plastic pollution is concerned. The particles emitted from consumer 3D printers can affect air quality and harm respiratory health. 3D printers usually work by melting plastic filament and then depositing the melted plastic, layer upon layer to form an object. Researchers found that the hotter the temperature required to melt the filament, the more emissions produced. The exposure to these filament particles could, over time be as toxic as the air in an urban environment polluted with vehicular or other emissions.