The structure

Current production vehicles are typically equipped with paper filters, while performance vehicles used oil-soaked cotton or sponge. An air filter job is to guarantee good air flow while preventing significant particles from ending up in the engine. These two operations naturally oppose each other and that is where Sprint Filters’ polyester filtering fabric takes a leap above the rest. Polyester fabric is extremely permeable, stable and is not affected by folding during construction. Cotton or sponge air filters, on the other hand, have a weaving that depends on the overlapping of numerous layers, leading to poor flow in some areas and ineffective filtration in others. The construction precision of the Sprint Filter polyester air filters offers equal filtration that remains constant over time. By contrast, a cotton air filter has extremely variable openings, from just a few microns to several tenths.”