http://www.homedepot.com/p/3M-Medium...A1-C/202080144
that's what I use. I also have a face shield that ray described before, I was thinking what about snowboard goggles, most of them have different lens's just get some clear ones, I think the snowboard gogles would fit nicely right on top of the respirator, just find a cheap pair they can get VERY expensive.... or something even smaller that seals what about swim goggles. not the big ones that cover your nose as that would get in the way of the respirator but ya know the lil ones basicly1 little goggle for each eye, like pro swimers wear, that might solve your problem the best as they seal but they are also real small and wouldn't interfere with the mask, to be honest my eyes are shot in the past year they have gotten bad but I think that's a whole different thing. I have never had my eye ache from dust and stuff after grinding, now having a lil piece of metal come flying off the grinder at like 60 mph and it make a direct hit in your eye, yeh that happens