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Residential Senior Certified


Ventilation Design

Ventilation is fundamental to controlling indoor air quality, but it's not the magic bullet it's often made out to be. This lesson outlines the effects of natural ventilation on indoor air quality, and outlines the proper ways to use mechanical ventilation.

Learning Objectives

At the conclusion of this lesson, you will be able to:

  • Review the basic ventilation strategies used to freshen the air in homes
  • Differentiate between natural and mechanical ventilation
  • Explain how the airtightness of a building is measured using a blower door
  • Describe four key features of a properly designed ventilation system
  • Summarize the air-exchange requirements specified in ASHRAE 62.2

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