A friend of mine designed and made this mod. All I did was place it here on Thingiverse to share it, with his permission
This fan enclosure houses dual fans, an on/off switch, and a USB connector to power the fan. Easily placed on the front of a Valve Index to enable a very small amount of airflow through the VR headset.
There is not enough air moved to dry your eyes, but just enough air is moved through the headset to keep your headset from fogging up, and the added benefit of having a tiny breeze within the confines of the headset.
I will provide a picture of a Valve Index headset with the fans attached.
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