[Larry Jaques[_2_]]

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

[Pete C.]

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".