... 4.Lasting effect long life Introduction:Zixilai photocatalytic filters are made with self-developed nano-TiO2 ... 4. no secondary pollutionSpecification:Materials: Micropore metal filters, aluminum honeycomb filters, aluminum filters, etcSize, aperture, thickness: Can be designed ... filters are widely used in air-purifiers, air-conditioners, car air-purifying systems, workshop ventilators and industrial ...