Thread:NB573/@comment-28482541-20170818171859

NB, I put this on the thread too. I just read an article that said it could still be unsafe with welders helmet unless the glass is at least a 14. It said most are around 10 and that would not be safe. Please check with hubby and see what the glass is.

Although here is one from NASA that says 12 or 13. https://eclipse2017.nasa.gov/safety 