Work cleanly and healthily. Paper filter for vacuuming dust. This enables work to be carried out efficiently, cleanly and systematically and reduces hazards to health. Double-wall. Optimum utilisation of filter bag capacity. For holding dust. Ideal for cleaning construction sites, workshops and offices. used only for extraction of dust types which are not hazardous to health. for dry extraction. for CT 17 E, VCP 170 E, VCP 320 E