* 2 vacuum cleaner bags for Bluesky and Gisowatt, industrial models * The vacuum cleaner bag should be changed approximately every 3-4 * Non-woven polypropylene, rubber, plastic * 58 x 30 cm * French manufacturer of vacuum cleaner bags Bluesky Gisowatt vacuum cleaner bag The TopFilter multi-layer non-woven vacuum cleaner bags (100% synthetic) are packaged in France. They are equipped with a cardboard insert with a rubber seal and a hygienic closure for high filtration capacity and flawless sealing. These vacuum cleaner bags for Bluesky and Gisowatt filter the air and retain dust, mites, and their droppings, thus releasing cleaner air.