This type of fan has been used throughout antiquity. Unchanged for thousands of years. A fan such as this is the first tool humans crated to control and manipulate air. And we want to reference this by its use.

The suspended fan acts and as sensor. It shows the air flow in a given space by movement. like a flag or wind-sock, its activated by air-flow and turbulence.

Installed in a space, a cluster of these objects give awareness of the circulation and airflow of an indoor environment.