Screw Compressor Air Filter with Fleece (also known as a Pre-filter fleece or Pre-wrapped filter) is a high-performance intake element designed for extreme environments. It features a standard pleated paper core wrapped in a secondary layer of synthetic non-woven fleece. This dual-stage design is specifically engineered for industries with high concentrations of airborne particles, such as textile mills (lint), cement plants (fine dust), and woodworking shops (sawdust).