Airflow (Inventory)/Airflow
From LagWiki
The Airflow field of the Airflow section should list stations with noticeable airflow. Indicate the direction and velocity next to the station. Velocities are not expected to be precise, just descriptive like "faint", "breeze", "strong", "breathing", "blowing", etc.
Example
Airflow: B45 to B46 (faint)