i bought a fanz double fan off ebay, for like $29 it works great, two little fans abouve the lens under the visor, quiet and it does a great job of getting rid of fog, I play int he pascific north west, in vancouver bc canda sometimes up in the hills and its cold and wet in winter, or hot in summer and i was having nothing but fog problems I couldn't see or walk it sucked, then I went out bought the parts and built my own fan. it works great too and cost less than the e bay double fan, it was easy to make and intall. and now I have no fog issues in the great Canadian woods,

checkout the parts and pics

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