you can still use sheer drapes as a rather clever method to allow almost unrestricted airflow into a room if you carefully position the sheer drapes to allow them to be moved out of the way.
Sheer Curtains Are Not Understood As Their Impact Upon Airflow And Cooling Your House.
Sheer drapes lets quite a lot of light through but blocks airflow. It is my belief that sheer drapes will impede air flow to the degree the sheer fabric is tightly or loosely made. The proof is simple. Any breeze flowing through a window that has sheer drapes will move out of the way.