This student module on exhaust, dust collection, and ventilation systems is one of 50 modules concerned with job safety and health. This module discusses the types of contaminants that can be controlled by ventilation, the types of ventilation systems, and the component parts of local exhaust systems. Following the introduction, 10 objectives (each keyed to a page in the text) the student is expected to accomplish are listed (e.g., Compare general and local exhaust systems). Then each objective is taught in detail, sometimes accompanied by illustrations. Learning activities are included. A list of references and answers to learning activities complete the module. (CT)