One should spend a little more money and buy the blue PET filter. Because this filter here nothing. We have a lot of rubble and building dirt suck in our house, where a lot is built and working around. With the blue original Nilfisk-filters, it never was a problem, because the inside of this circular filter should always remain pure and white, ideally while the outside is colored by the dust and dirt, but it should remain outside any gr0ße layer of dust hanging. All this was in the original blue filters, which are equipped with a very thick, very solid, non verformbareb and weapon-like fine-textured filter paper. This orange filter, however, are equipped with a fairly thin, labbe engined, hardly structured, resembling paper towels filter paper, the inside was discolored after a few larger Saugaktionen and outside could not get a big fat dust and debris layer to be in the inside already started seeing. Hab immediately bought the more expensive blue PET filter on Amazon. For everything to work properly again.
