Fits Electric Arc hood 9179 and should be attached to a helmet. Certified according to EN 166, EN 170 and GS-ET-29. The product is designed to protect eyes and face against the mechanical and thermal hazards of an arc flash during live working or when staying in the vicinity of live parts. It is not intended for arc welding, especially not to protect against long term high heat, chemicals or any other radiation than emitted by an arc flash.