I just broke a my glasses that I used for airsoft the other day and I'm short on cash so I went down to Lowes to see if I could get a pair of safety glasses. The only ones I could find though that I thought might be approved were rated Z87.4. So my question is, are ANZI ratings successive meaning that Z87.0 is not as good as Z87.1 and Z87.4 is better?
Thanks