This filter represents the ideal solution for all filtration problems which require a sleeve dust collector complete with an automatic cleaning system that allows the pressure drops, and consequently the machines suction, to be kept approximately constant. The dirty air, before being filtered, passes through a settling chamber where the coarser dusts fall directly into the exhaust systems without reaching the filtering elements. This guarantees less clogging of the sleeves and guarantees greater durability. Filter insulation, made of high-density mineral wool, ensures insulation at temperatures up to 250°C. The filter can be equipped with a fire extinguishing system.