Which of the following is NOT a purpose of a safety helmet?

Safety helmets are primarily designed to offer protection against various hazards found in the workplace. One of their main purposes is to protect the head from falling objects, which can cause serious injuries. Additionally, helmets may come equipped with reflective materials or bright colors to enhance visibility in an industrial environment, helping to prevent accidents.

While some helmets may provide better insulation or comfort in cold weather, this is not a primary function or purpose of a safety helmet. The main focus of these helmets is on impact protection and other safety features rather than climate comfort.

Preventing injuries from electrical shocks is also an essential function of some safety helmets, particularly those designed for electrical work, which may have insulation properties to protect the wearer from electrical hazards. Therefore, options discussing physical protection or visibility are fundamental aspects of a safety helmet's design, whereas comfort in cold weather does not pertain directly to the helmet's primary safety functions.