What is the primary reason for using gloves and safety glasses during propane filling operations?

The primary reason for using gloves and safety glasses during propane filling operations is to guard against the refrigerating effects. When propane is released, it vaporizes rapidly, creating extremely low temperatures that can cause frostbite or cold burns upon skin contact. Wearing gloves provides a critical layer of protection for the skin from these cold temperatures. Safety glasses are also essential to protect the eyes from splashes or vapors that may occur during the filling process. This combination of protective gear is vital to ensuring the safety and health of the operator while handling propane.

While other choices may touch on safety concerns, they do not address the specific risks associated with the extremely low temperatures of propane and its potential to cause harm through contact.