Does anyone have problems with safety glass lenses fogging up if so what did you do to fix it? My auto-darkening welding helmet was driving me crazy so I added a very small 12 volt fan, like is used in electronics, and powered it off a 9 volt battery. I only turn it on as required and it works fine on 9 volts. It's mounted just above my eyes. I've tried Rainex on the goggles but it looks smudged and hard to see through. What do the pros do? :confused:

sorry, but I haven't had them problems. maybe install more venting, breathe out of your nose? smile.gif