FIELD: medicine.SUBSTANCE: invention relates to machine building and is associated with the finishing of plastic products produced by the additive manufacturing process or by casting and is intended for reducing surface roughness of the parts. Chamber for processing plastic products comprises a housing, a cover with a fan and a backlight lamp located therein, control buttons, a filler tank and a waste tank, lock, connecting pipelines, a pump, a magnet crane, a control unit, a shutoff cock, a cover lifting mechanism, a bath with ultrasonic evaporators located therein, a protective panel, viewing window, a drain branch pipe, liquid level sensors located in the tanks. Mode is selected and a processing cycle is controlled by using the control buttons located on the panel, and the processing parameters are displayed on the control display.EFFECT: technical result of the invention is higher quality of surface finishing of the plastic part.1 cl, 5 dwg