The fleece filter bag is a replacement bag for dry vacuuming. The non-woven bag easily collects and removes dust. It offers better durability, performance and safety compared to standard paper bags. The use of non-woven filter bags drastically improves the life of standard and HEPA filters. It is designed for Bosch hoovers. If you use a fleece filter bag, make sure that the automatic filter cleaning is switched off to avoid damaging the fleece filter bag. Suitable for: GAS 55 M AFC Professional.