The AdBlue product is a water-based urea solution consisting of 32.5% urea and 67.5% purified water used to reduce the exhaust emission of diesel engine vehicles. DEXXBLUE AdBlue® is a water-based urea solution compatible with nature, produced in accordance with the ISO 22241 standard, and is used to reduce the harmful nitrogen oxide (Nox) emissions released into the environment from diesel engine vehicles with SCR technology to the levels specified in Euro IV and later emission standards.In addition to other emission systems, an SCR (Selective Catalytic Reduction) System is used in passenger, light commercial and heavy commercial diesel vehicles in order to meet the advanced Environmental Emission Standards.