How It Works: Fresh Air vs. Recirculated Air
Your car’s HVAC system has two modes:
Fresh Air Mode (Recirculation OFF):
The system draws in outside air, passes it through the cabin air filter, then heats or cools it before circulating it through the interior.
Recirculation Mode (Recirculation ON):
A small internal flap closes off the outside air intake, creating a closed loop that reuses the air already inside the cabin.
This might seem like a minor detail—but it has major implications for comfort and performance.
When to Use Recirculation (And Why It Helps)
ADVERTISEMENT
