Check these options when purchasing a welding shield

Delay in returning to light colors after welding is complete: You can choose the speed at which you return to light colors after welding is complete. The greater the amperage of welding, the slower the speed of light color recovery.

Light tone lock function: The mask can be locked on the light tone when sanding work, but it must be turned off when welding work is resumed.

Tone level Settings: can be manually selected. You need to choose the right degree for your activity. The knob is usually located on the outside of the mask. Darkness must be commensurate with arc strength for optimal protection. A mask that is too dark can affect vision, while a mask that is not dark enough can lead to excessive exposure to radiation.

Sensitivity adjustment: Depending on the surrounding light, the sensitivity can be increased if the mask cannot easily detect the presence of an arc.