Originally Posted by PaintMasterFlex
Does the fan blow on your forehead or the lens? If it's the forehead, I'm defiantly buying one.
Primary users will be people who wear glasses and don't want their glasses to fog. After that it's people who want circulation in the lens. We have a handful of them being tested in Chicago (ideal conditions..hah) on a variety of masks (fit the Grill and Profiler, would fit the KLR and JT goggls with a slight modification to the visor attachments I think). The people who are using it who don't wear glasses reported back their mask felt noticeably "fresher" (both Sina Azmoudeh and Helen Grose said this separately) when they ran the fan one day and didn't run it another... Take it for what it's worth...
The fans are really quiet and definitely move some air but it's not like you've got something blowing in your eyes the whole time so if you wanted a fan to chill off your forehead I don't think this would do the trick. Does appear to help a bit if you're not a glasses wearer, which is not what I was expecting to hear to be honest.