the Swirl dust filter bag really keep their promise, also easy to remove suction power until the bag is full and full, thanks to the possibility to close the bag, do not lose the content on your way to trash.
It is certainly not the cheapest product, but definitely my first choice. And an annualized one comes with a pack of loose of 2 years.
So that makes 5 euros over the year, which can be a quiet worth the quality ;-)
