Material:Polyester (PET), polypropylene (PP), Fiberglass, METAMAX, FMS, P84, Acrylic, ... Acceptable. Nonwoven Needle Felt Filter Cloth forDust filter bagsMaterial: Polyester (PET), polypropylene (PP), Fiberglass, METAMAX, FMS, P84, Acrylic, ... collection. Similar products: Normal temperature products: PET, pp, anti-static, water and oil repellent, PET membrane, Acrylic. High temperature products: FMS ...