Supply Air Conditioning Filter Media , Synthetic FIber 1.White color 2.Gram ... m2 3.Thickness,5-25mm Supply Air Conditioning Filter Media , Synthetic FIber Features1.Using polyester, polyamide, nylon, etc. ... integration between the fibers is closer, and the fiber is not easy to shed.4.Low flammability, ... fresh air, pre-filtering prior to medium-efficiency filter, as well as filtration of return air in ...