an apertured coated abrasive member comprising abrasive particles secured to a first major surface of a thin flexible incompressible backing by make and size layers; and

an adhesive layer adhered to a second major surface, opposite the first major surface, of the backing, wherein apertures extend through the abrasive layer, the backing, and the adhesive layer;

a first filter medium having a first surface and a second surface opposite the first surface, the first surface of the first filter medium adhered to the adhesive layer of the apertured coated abrasive member, the first filter medium defining discrete channels formed by channel sidewalls, the discrete channels extending from the first surface of the first filter medium to the second surface of the first filter medium;

a second filter medium having first and second opposed surfaces, wherein the first surface of the second filter medium is proximate the second surface of the first filter medium at an interface; and

an attachment interface member affixed to the second surface of the second filter medium, wherein the attachment interface member comprises fabric and has a back surface proximate to the second filter medium and an outwardly disposed engageable surface opposed to the back surface;

wherein at least a portion of the apertures cooperate with at least a portion of the discrete channels to allow a flow of particles from the apertured coated abrasive member to the second filter medium, wherein the first filter medium, the second filter medium, and the attachment interface member are joined together by at least one weld situated at the interface.