What shade of face shield is recommended during oxy-fuel torch operations?

The recommended shade for a face shield during oxy-fuel torch operations is shade 5. This shade level provides adequate protection from the brightness of the flame and the heat generated during cutting or welding processes, while still allowing the operator to see the workpiece clearly. The appropriate tint helps to prevent eye strain and damage from harmful ultraviolet (UV) and infrared (IR) radiation produced during these operations.

Choosing a shade that is too dark can obscure visibility, hindering the operator's ability to monitor the welding process and effectively manage the material being worked on. Conversely, a shade that is too light may not offer sufficient protection, increasing the risk of eye injury. Shade 5 strikes the right balance, ensuring safety while still maintaining good visibility for precise operations.