Back Heat-resistant Nylon Felt Material: AramidSurface treatment: SingedCorresponding models: WRT, BV, CT and HGDApplication: High-temperature dust collection (particle size about 10μm)FeaturesThis filter is for high-temperature dust collection.Collecting efficiency: GoodHeat resistant temperature (F): normal temperature 170˚C (338˚)Acid-resistant: AverageAlkali-proof: Good