Has anyone solved the ventilation problem for headsets yet? I seem to be convinced that the right light-absorbent baffles that still allow air through are possible, but no one seems to have attempted this in a product
I didn’t really believe it would work until I tried it, but having a fan blowing on you at high speed works to cool your whole body, including inside the headset. I no longer experience fogging of lenses or sweat dripping down into my eyes, which previously would become a problem after 15 minutes of intense activity. An added bonus is that the breeze can give you a sense of which direction you’re facing.
What worked for me to avoid fogging is to wear the headset kind of like a visor for a few minutes before starting your workout, which warms it such that I haven't worried about fogging much since (which initially was a problem).
There is, e.g, the BOBOVR F2 which will add a battery-powered fan to your Quest 2 to add some venting, but I haven't personally tried it.
There are face interfaces with the ventilation holes set above that don’t leak light. Must be the hole angles, the ones I use seem to be fine (can’t provide links, they come from a random vendor on Aliexpress).
I believe the versons with fans also don’t leak light.
Can't say ventilation has been an issue for me on the Quest 2, I have a pleather type face cover and there is a hole by the nose area so it's not an air tight seal. I have done many long sessions with it.