What is the purpose of ventilation?

The purpose of ventilation is fundamentally to move air in and out of a building to address various indoor air quality issues. This includes the removal of excess moisture, which can lead to mold and other moisture-related problems, as well as the clearance of indoor air pollutants, such as volatile organic compounds (VOCs), carbon dioxide, and other contaminants that can accumulate in enclosed spaces. Effective ventilation is essential for maintaining a healthy indoor environment, ensuring that occupants have access to fresh outdoor air and that stale, polluted air is expelled.

While reducing energy loss, increasing indoor temperatures, and recirculating indoor air may have specific benefits or implications, they do not capture the primary purpose of ventilation, which is to ensure adequate air exchange and improve air quality. Ventilation assists in regulating moisture levels and promoting overall comfort and health within the building.