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Presentation Overview

Ventilation is the process of supplying outdoor air to occupied spaces to dilute contaminants, control humidity, and meet the minimum fresh air requirements of ASHRAE 62.1.

Commercial ventilation equipment ranges from simple exhaust fans to dedicated outdoor air systems that condition and filter 100% outside air before delivery.

The energy performance of a ventilation system is largely determined by how effectively it recovers heat and moisture from exhaust air streams. This session establishes the foundational vocabulary and system categories used across commercial ventilation design.