- Air change
- Outside airRoom airExhaust
Concept only—not a duct layout or airflow rate. Replacing the full volume of room air one time.
- Recirculation
- See related figure: Trace the air →
Sending room air back through the cooler instead of outdoors.
- Damper
The adjustable flap that sets how much outside air enters.
CO₂, Fresh Air & Distribution
Visual glossary
