| 摘要 |
The present invention to a vacuum cleaner bag that includes a neck opening (11) for connection to a vacuum cleaner line (20, 21), wherein the bag is essentially dust-impermeable and the wall (41) of the bag is permeable to air over a part of its area. The bag (10) includes a tubular gas tight element (15, 15', 15") which extends along a part of the length of the bag (10) from the neck opening (11) of the bag towards the bottom of said bag down to a pre-determined level (19) above the bottom of the bag. |
