Airflow to prevent damping off?

Wes rigged up a small fan with power supply to pull air through the plant window. Fingers crossed it works! There’s always taking the baby plants in and out each day for sunshine but I’d really rather not. Because I’m lazy.

The small fan. You can see the plexiglass gap there and a larger gap is at the top, which you can see in the next picture.
The cause of all this nonsense (Gram the cat) walks by the clamp I need to put back up to hold the plexiglass in place. Briar supervises.