Lens fogging problems - any fix for this? I used to use a vive - for various reasons I just switched to rift.  I am liking it better in most ways \_except\_ for the fact that it seems the lens fog is about five times worse on the rift.    


I use active VR games a lot, and I sweat.  The vive would eventually fog up over time, but never get really bad.  The rift will fog up in literally 15 seconds... and after a minute the fog is thick enough that I am losing serious detail.   


Is there any fix for this?  Perhaps a face pad that has better ventilation or something like that?    


Also - to confirm - the best thing for the lenses is to use a microfiber cloth and gently wipe in circles... right?  