After cleaning with Aqueous Ozone, it converts back to air and water which reduces your carbon footprint. No storage, mixing, or transporting chemicals, making it easier to keep your facilities clean! Enhanced spray gun including 0° spray tip for high pressure and 40° fan tip for Aqueous Ozone. Each POWERcaddy Includes: Vac hose and wand and pump up spray bottle. Concentration: 1.0-1.5 parts per million (ppm) Ozone in solution.