Harbor Freight helmet stopped working
On Mon, 19 Apr 2010 08:50:11 -0500, the infamous Ignoramus9593
scrawled the following: On 2010-04-19, Pete C. wrote: Stormin Mormon wrote: I'd be very concerned, about a welding helmet that didn't protect ones vision. That could really mess up the rest of your life, if you go blind. Realize that the auto dark lenses block IR and UV 100% of the time. Yes, it is 100% safe to weld with a non-darkening helmet, it is just inconvenient. Even when it does not darken, it blocks IR and UV, and actually provides some darkening as well. Dark or not, it provides about same level of protection. Cites, please? --- A book burrows into your life in a very profound way because the experience of reading is not passive. --Erica Jong |
Harbor Freight helmet stopped working
Larry Jaques wrote: On Mon, 19 Apr 2010 08:50:11 -0500, the infamous Ignoramus9593 scrawled the following: On 2010-04-19, Pete C. wrote: Stormin Mormon wrote: I'd be very concerned, about a welding helmet that didn't protect ones vision. That could really mess up the rest of your life, if you go blind. Realize that the auto dark lenses block IR and UV 100% of the time. Yes, it is 100% safe to weld with a non-darkening helmet, it is just inconvenient. Even when it does not darken, it blocks IR and UV, and actually provides some darkening as well. Dark or not, it provides about same level of protection. Cites, please? http://www.harborfreight.com/manuals...6999/46092.pdf Page 5 in the specifications and page 7: "The ultra high performance of UV and IR Auto-Darkening filters provides to the user’s eyes and face full protection against UV and IR radiation during the entire welding process, even in the clear state. The UV/IR protection level is up to shade 16 at all times." Also http://www.jacksonsafety.com/catalog/ On page 50 you will find the same thing listed under Bandpass filter, "Jackson EQCs bandpass protects to a shade 14, even in the 'off' state". |
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