Overview of Ventilation Systems: Dilution Ventilation vs. Local Exhaust Ventilation

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Ventilations Systems Introduction My purpose in this research is to compare two of the most well-known and major ventilation systems. These systems are used in many institutions both public and private and they are designed to remove contaminants. This review is important because a good clean environment (including air that is free of toxic pollutants) is of vital interest to the community. No one should have to worry that the air they are breathing is harmful to their health. This outline will feature detailed information on "dilution (or general) ventilation" and "local exhaust ventilation"; it will also present contrasting aspects of both kinds of ventilation. There are advantages and disadvantages to both systems of ventilation. The public should be knowledgeable about these systems of ventilation for their own health and well being. Dilution Ventilation Positives This system is called "dilution" because it dilutes the contaminated air by mixing it with clean air, reducing any toxic or otherwise unclean air in the building Dilution systems spread the polluted (or unclean) air around and throughout the building, using fans in the walls and ceilings. By mixing unclean air with clean air, the toxic or potentially hazardous air is greatly weakened While it is not perfect and still allows some unclean air to remain in the building, dilution ventilation is less expensive to install and to operate than local exhaust ventilation; Dilution Ventilation Limitations

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