The results of the analysis of existing approaches to the determination of the efficiency of trapping pollutants at their sources of isolation, as well as the prediction of residual contamination of the air of working areas. The classification of methods for determining the effectiveness of local suction ventilation systems. Given the technological distinction between the concepts (factor "technology capture") and sanitary (factor "technological breakthrough"), the efficiency of local suction. The tasks of improving the mathematical description of both types of efficiencies.
Keywords: pollutant, a local suction, efficiency, carbon capture, source separation, capture, simulation