Apparatus and method for removing an induced flow of particulate-bearing air traveling with a moving yarn sheet in a winding apparatus such as a textile warping machine. An air nozzle produces a thin sheet of air moving in a counterflow direction to the induced air flow, and located adjacent the carrier roll of the warper. The air sheet entrains a volume of ambient air for movement with the air sheet, and the mass flow of the counterflow-moving air is sufficient to redirect the induced air from the yarn sheet for removal from the warper. An optional second nozzle may provide additional air entrainment above the moving yarn sheet, upstream from the carrier roll, thereby entraining a flow of air moving through the yarn sheet to divert dust and other particulates traveling on or with the yarn sheet.