Final answer:
A welding helmet with a PAPR provides eye and skin protection against thermal energy, electromagnetic radiation, and sparks, as well as respiratory safety from harmful inhalants.
Step-by-step explanation:
A welding helmet with a Powered Air Purifying Respirator (PAPR) system provides protection against multiple hazards faced by welders. It is critical in safeguarding against dangerous thermal energy, the emission of high-energy electromagnetic radiation, and sparks produced during the welding process.
The helmet not only protects the eyes from welder's flash (photo keratitis or arc eye) which is caused by high-intensity UVB light, but also helps prevent the potential development of cataracts and other eye-related medical issues. A PAPR also filters out harmful particles and fumes that could be inhaled, ensuring the respiratory safety of the welder.