Review on Lincoln Electric K3540 3 VIKING Darkening by Paarvin Freedman

For a professional metal sculptor, this is a lot better than constantly switching from a welding helmet to a face shield. It's heavier than a regular helmet, but it's comfortable and the lenses offer the best quality of vision. I bought a clear plastic gloss/wax and wipe down the clear window a few times a week. Much easier and cheaper than changing a clear lens every time it gets scratched/fogged by wiping the dust.