Abstract: A device containing a far infrared radiation-emitting material over which fuel or other fluids such coolant fluid can flow such that far infrared radiation is emitted into the liquid fuel or coolant resulting in the reduction of toxic exhaust gas and the improvement of the combustion efficiency. The compositions includes a material that can emit far infrared radiation, such as magnetite or quartz-feldspar porphyry. Generally, the far infrared radiation emitting material is contained in a matrix that radiation being emitted to disperse out of the matrix and into the surrounding environment. The preferred matrix is a glass composition even though other materials such as plastics may be used. Preferably the glass composition is in the form of glass beads, which can be any shape but preferably pellets or balls. Also the far infrared radiation-emitting material can be embedded in other materials such as clear plastic, clear silicone or clear fiberglass beads.