Made of three-layer polyester sanding cloth materialTear-resistant and high-qualityReusableFor class L dustSafe disposal of dry, non-hazardous dustThe long-life filter bag is robust, durable and suitable for vacuuming dusts of class L. Thanks to the robust polyester sanding cloth material, the long-life filter bag can always be reused. Vacuum, open the sealing slide, empty the filter bag, close the sealing slide and continue vacuuming. This enables work to be carried out efficiently, cleanly and systematically and reduces hazards to health.