Vacuum cleaner filter bag

摘要

The invention relates to a vacuum cleaner filter bag which is made of a filter material and which comprises at least three layers. At least two layers consist of a non-woven fabric layer, and at least one layer consists of a non-woven fabric layer of fibres and/or filaments. The at least two non-woven fabric layers and the at least one non-woven fibre layer are connected together by a weld.