Unlike toner-based printers, RISO printers are free from ozone emissions, toner particle emissions, silica dust, and other air pollutants. RISO printers do not emit any greenhouse gases. RISO duplicator ink is soy based, which is more easily recycled. Also, soy ink does not release a significant volume of VOCs into the atmosphere. VOCs, or Volatile Organic Compounds, are emitted as gases from thousands of products, such as paints and lacquers, paint strippers, cleaning supplies, pesticides, permanent markers, glues and adhesives, and even copiers and printers. VOCs can negatively affect our health. And, because RISO duplicators and inkjet printers use a clean printing process, there is no need to use harsh cleaning solvents as part of the press cleaning process, which eliminates even more VOCs from ever entering the environment.