z87+ is written on both arms this is the right
Discussion
Yea there it is
this is showing it against an infrared carbon incandescent lamp, looks like a good 50-60% block to me
i'd have to really test it with a pure IR illuminated night camera to see how well it actually works though, but it's still better than regular sunglasses, which are practically transparent to IR
btw, does the + signify something? it also said something about "IR Filter 3" and i saw some other similar welding safety lenses with higher numbers like 5
Nah. But the numbers indicate the shielding effect to arc light if I’m not mistaken
If you ever accidentally looked at a welding arc, it fries your eyes pretty good, gotta lay with potatoes or cucumbers on your closed eyes. It sucks
yeah i figured these were just for like an oxy torch working on steel for like cutting and such... yes very white hot blast of IR but nothing like a welding arc... those things leave burn-in on your eyes for a minute even at 10 yards range, even reflections from metal objects
anyhow i got them for reducing the ability of IR illuminators from showing my eyes to cameras so the many cameras i may pass by from time to time will not be usable images to recognise me automatically from my face
The it ratings on those are just to protect you from the infra red radiation. 5 being stronger. Those aren’t intended for welding but will protect you from the arc flash burns. The actual osha requirement for the helmet is darker I believe. I haven’t done iron work in over a decade.
You can check the osha infos bout them with a quick google