Dust bag outside for belt grinders (6-piece set 1 outside bag incl. 5 x inside bags)
 Sack in sack system "double filter system" with BIA dust class M certified material

 1. The sack in sack system for parquet sanding machines is a double filter system with two dust bags.

 2. Sack in sack system for parquet sanding machines  according to claim 1, characterized in that a robust textile outer bag (dust class M) and a textile inner bag (non-woven disposable bag) are used in combination.

 3. The outer bag is completely sewn and has a neck with an opening with a drawstring or similar made-to-measure through which it is attached to the grinding machine or to the suction system.
 A zipper is sewn into one side. The outer bag also has a sewn-in bottom. By opening the zipper, the inner bag can be easily removed or attached without creating dust.

 4. The inner bag (disposable bag) is completely sewn without a bottom and has an opening with a drawstring or similar made-to-measure, which is used to attach or connect to the respective device.
 The bags can be manufactured individually for all woodworking machines (grinding machines) or similar, as well as extraction systems.

 5. the disposable sack / inner sack is exclusively a disposable item.

 6. The one-way bag can be easily disposed of after filling and is printed with separate instructions in this regard.

 7. The outer bag is preserved in the long term and the acquisition costs are thus minimized.

 8. The health risks are reduced by lower dust separation during disposal and during work.