Vacuum-cleaner filter bag

Vacuum-cleaner filter bag

  • CN 101,730,571 A
  • Filed: 07/03/2008
  • Published: 06/09/2010
  • Est. Priority Date: 07/06/2007
  • Status: Active Application
First Claim
Patent Images

1. vacuum-cleaner filter bag, it has filter medium, and described filter medium comprises:

  • Ground floor, it is made up of net, porous chips or porous non-woven fabric and has at least 10,000l/ (m 2S) air permeability, First fibrage, it is formed and is connected to a side of described ground floor by staple fibre and/or string.

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