1, Midium efficiency 2, ISO 9001-2000,CE,EN779 Certification, 3, washable,replaceable filtering ... ,F5-F9 Product Character: 1, Aluminum frame and metal frame,2, Material: chemical material and class fiber material, 3, Efficiency: ... -F8F8287x592x65086.6065/2500, 175/5000We would like to manufacture accordingto client's requirement dimensions. F5 aluminum frame polyester bag filter for air-conditioning