... -20mm Width: 1-2m Length: 20-100m Activated carbon needle punched pre-filter cottonFiber activated carbon media is made of high ... material. It is adopted of macromolecule adhesive material enclosed at fiber base with excellent absorption performance, good sharp, high strength, ... , air purifier, water purification, and gas absoption ect. Fiber activated carbon media can also be single-used for filtering ...