FILTER AND MANUFACTURER THEREOF

PURPOSE:To provide a filter which can be reused and remove shoot and dust smuts efficiently by piling heat resistant and alkali resistant inorganic continuous fibers while drawing circles with the fibers and binding the crossing points of the fibers in the voids by a inorganic binder wherein the voids communicate three-dimensionally with one another through arcs. CONSTITUTION:Excellently heat resistant and alkali resistant continuous fibers such as silica fibers, alumina fibers, etc., is used as a basic structural material and numberless voids which three-dimensionally communicate with one another are formed by piling the continuous fibers while drawing optional curved lines with the fibers. The crossing points of the continuous fibers are bound by an inorganic binder such as an alkali metal silicate-based inorganic binder, a phosphate-based binder, etc., to give a piled structure body. The filter obtained in this way has high heat resistance and is easy to be handled.