Dirty air is the turbulent, disrupted airflow left behind by a Formula 1 car as it moves at high speed. When a following car drives through this disturbed air, its aerodynamics are significantly compromised — it generates less downforce, has less grip, and the driver finds it harder to follow closely through corners. Dirty air is one of the main reasons overtaking has traditionally been so difficult in Formula 1. The 2022 regulations were specifically designed to reduce its effect.
Example: He’s struggling in the dirty air of the car ahead — every time he gets close, he loses front-end grip.
Dirty air is not the same as slipstream. Slipstream reduces drag on straights and is helpful; dirty air reduces downforce in corners and is a disadvantage.
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