Ceramic Fiber Filter Ceramic fiber filter is a filter for high temperature dust collectors. Developed with high-temperature heat insulation technology and ceramic fibers forming technology. Ceramic fiber filter is a heatproof filter and superior to general filters because of its high service temperature up to 900ºC, and prevents components of processing system from burning. And its filtration performance is good very much, and its lifetime is long because its strength doesn't go down even in high temperature.