What type of systems are designed to provide fresh air and remove stale air from a space?

Ventilation systems are specifically designed to introduce fresh air into a space while removing stale air. This process is crucial for maintaining indoor air quality, ensuring that harmful pollutants, odors, and excess moisture are expelled, while sufficient fresh air circulation is provided.

These systems can operate in various configurations, such as natural ventilation, which relies on open windows and vents, or mechanical ventilation, which uses fans and ducts to facilitate air movement. Effective ventilation helps to dilute indoor airborne contaminants and manage thermal comfort, contributing to the overall health and comfort of occupants in a commercial setting.

Other systems listed, such as cooling and heating systems, primarily focus on regulating temperature rather than directly managing air quality by bringing in external air and expelling stale air. Air conditioning systems, while they can improve air quality to an extent by filtering and conditioning air, are primarily centered on cooling and humidity control rather than the primary function of ventilating fresh air into a space.