Completely maintenance free, very silent, resistant suitable for non-stop working. Large nylon collection bag aids in disposing the sucked material. The tranparent window in the cover lid enables to check the level of sucked material. The body is completely made of epoxy painted steel. The machine is mounted on four polyurethane wheels for ease of transport. Stainless steel AISI 304 body available as optional. Polyester filter bags for dust applications.