Before you break out that old welder's helmet, make sure you know the filter's shade number. NASA suggests that if it's less than 12, which it probably is, people should not even consider looking ...

Only welding helmets with a shade number of 12 or higher allow for safe viewing of the sun, according to a 2017 NASA article. However, one welding equipment manufacturer insists a shade 12 filter ...

According to NASA, welders' glass must have a high enough number to view peer at the sun safely. Anything with a shade of 12 or higher works, because those are much darker than the filters used ...

Before you break out that old welder's headgear, here's what you need to know. 00:01 01:14 Author: Jenni Lee, John Diaz Published: 6:57 PM MDT April 5, 2024 Updated: 5:31 AM MDT April 8, 2024 ...