Far-infrared powder is a white powder composed of various substances. Its primary feature is its ability to emit more far-infrared radiation than normal objects (higher infrared emissivity). It is mainly used in high-temperature areas for boiler heating, paint baking, and heating and drying of wood and food. In normal temperature areas, it is primarily used in the production of various far-infrared thermal insulation materials, such as far-infrared ceramic powder, far-infrared ceramic fiber, far-infrared ceramic polyester, and functional ceramic materials with far-infrared properties. Far-infrared ceramic coatings (including nano-titanium oxide coatings) have a catalytic oxidation function, generating negative one-valent hydroxide ions under sunlight exposure (especially ultraviolet light), and possess bactericidal properties.