Hi this is my version of the VR n CHILL. I live in Europe and the shipping costs of the original product made it to expensive to order it. So I made a somewhat similar design.

I used to original vive kickstarter model for reverence. So all cudos to the makers of the original design

This will give a nice air flow on your forehead to stop you from sweating.

I used a normal usb cable with switch to a battery pack. You can also make it usb type c and plug it straight into your quest.

BOM:

• 2x 30mm fans 5V. (search for something with good bearings, will help keep te noise down) something like this: https://a.aliexpress.com/_dSuuzpx
• usb cable with optional a switch. something like this: https://a.aliexpress.com/_dZUpu0V
• Heat shrink (optional, if you want it to look nice...)
• 2 m3x20mm bolts and
• 2x m3 nut

just solder it together, you will only need to solder the black and red wire for powering the fans. You can just use a little bit super glue for the fans in the casing (it's a snug fit)

I used 3M tape to stick them on the headset. (3M-TAPE-20MM-1-AMA1)

Depending on the quality of the fans they will make some sound, but when there is audio on I hardly notice it.