Which of the following is an example of PPE?

Personal Protective Equipment (PPE) refers to gear worn to minimize exposure to hazards that can cause serious injuries or illnesses in the workplace. A hard hat is specifically designed to protect the head from impact, falling debris, and other potential hazards commonly found on construction sites. Its primary purpose is to safeguard the wearer's head, making it a standard form of PPE in the construction industry.

While a tool belt is used for carrying tools and may improve efficiency, it does not provide personal protection from hazards. A safety manual is a document that outlines safety policies and procedures but is not worn as protective gear. Construction plans are blueprints that guide the work process and do not offer any personal protection. Thus, the hard hat stands out as the clear example of PPE among the options provided.