... 2000,CE,EN779 Certification, 3, washable,replaceable filtering material, 4,F5-F9 Product Character: 1, Aluminum frame and metal frame,2, Material ... houshold.Ankelin, for the one and only high-tech for filter, so worthy of choice, your life partner.Advantage1, washable2, ... would like to manufacture accordingto client's requirement dimensions. F5 aluminum frame polyester bag filter for air-conditioning