Face shield against arc flash for the electrician with continuous flap. Face protection against electric arcs for short-term switching work and other work that must be performed under or in the vicinity of undervoltage parts. This face shield provides no mechanical protection. Spare visors available separately. Window material: 1.5mm thick acetate, Quality: NOMEX 3T/A. In accordance with: EC type test according to EN166-170 and GS-ET-29 (CE0340) Arc class 2. (7 Ka-0.5sec-350mm) Additional test with 8.3kA-0.5sec-350mm. light transmission >75% = class 0.