Fleece filter bags are better and easier to open than paper ones. They are well suited for applications where small amounts of fine dust are generated, such as grinding and removal of paint and lacquer coatings or short drilling jobs with small diameters. They are ideal for use with wood processing machines, including routers, planer thicknessers, small random orbital sanders, and orbital sanders. These bags offer improved mechanical stability and are suitable for all-purpose and special suction units with a maximum container volume of 25 litres.