The Filter Flow is an air flow system that markedly improves machine operation and maintenance cost by preventing the accumulation of lint and debris in needles and sinker and their cam sections. It lowers machine temperatures and improves needle life. When using open end yarns, the improvement can be dramatic. The Filter Flow 2000 ends the need to flush the machine, preventing oil spots and oil and graphite lines, eliminating all associated fabric waste. The Filter Flow also minimizes wear on the knitting elements of High Speed Machines by allowing such machines to operate at lower temperatures.