The invention relates to a dust collection system (30) of a dry degreasing and depilating machine (10), comprising: - an air suction circuit (32), - a suction turbine (34), - a sedimentation chamber (36) equipped with a filter element (38), - a decolorization device (40) planFor injecting a decolorization gas stream into the filter element (38) during the decolorization operation, which is characterized in that it has a control unit (76) controlling the turbine (34) and the decolorization unit (40) Depends on the pressure and load measurements in the suction circuit (32).The invention also relates to a machine (10) and a dust suction process.Summary figure: 1
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