If the scratches are deeper, I had some turn signal lenses that were pretty bad in the sense they looked like they had kissed some pavement at one time. Before trying to locate new lenses, figured I would try to remove the scratches.. had little to lose. I started with about 400 grit paper and worked my way up to 1500 grit, then used some rubbing compound. Looked so good, I kept them. Since this is a face shield, if you try it, try it on some out of the way spot first.