Standard:NFPA 70E . Made of good polycarbonate,anti-fog and high visibility,light transmittance 70%,can use with safet helmet Model No. ZR-C101Material:Made of good quality polycarbonate,anti-fog and high visibility,light transmittance 70%,Can use with safety helmet.Mianly used to protect operator's personal safety. Level10CAL/cm2 StandardNFPA70E Arc Protective Visor