Which of the following does not fall under personal protective equipment?

Personal protective equipment (PPE) encompasses a variety of gear and clothing that are specifically designed to protect individuals from hazards that they may encounter in the workplace. This includes items such as gloves, helmets, and ear protection, which all serve distinct protective functions.

Gloves safeguard hands from chemicals, cuts, and abrasions. Helmets protect the head from impacts and falling objects, while ear protection helps to prevent hearing loss in noisy environments. Each of these items is directly related to personal safety in various occupational settings.

In contrast, office supplies do not serve any protective purpose. They include items like pens, paper, and staplers, which are generally used for administrative tasks rather than for safety. Therefore, office supplies do not fit within the category of personal protective equipment, making this the correct choice.