The filter element in Air Filter is constructed from special types of Synthetic non-woven needle punched media. This is stitched together with GI/Alu /HDPE wire mesh and crimped to from deep folds to ensure uniform air flow. This results in low differential air pressure, high dust retention Capacity, high flow rate. To ensure uniform distribution of air flow and longer service life, filter Folds are separated by aluminum spacers. The efficiency of Air Filter is 99% down to 5 and 3 microns. Pure Filter Systems manufactures Air Filter. Pure Filter Systems offers Fabrics, Non-Woven Fabrics, Non Woven Fabrics, Antistatic Fabrics, HDPE Tarpaulins, Canvas Tarpaulins, Fireproof Canvas Tarpaulins, Air Filtration Systems, and Industrial Filters.