How to stop the fog????

Don't know if it would work, but in paintball we had a set of goggles (z81+ impact rated) that had a fan on top to keep the fog down. worked wonders for the field, might work for you. of course you would look pretty crazy with a full paintball mask on but heck, its better than cutting your leg off because you couldn't see.... If it looks stupid but works, it isn't stupid.