Which is an example of a hazard that necessitates the use of personal protective equipment?

The choice highlighting flammable materials is indeed the correct answer because flammable substances can pose significant risks in the workplace. When these materials are present, they can ignite and create fires that could cause serious injuries, extensive damage to facilities, and even loss of life. To mitigate this risk, the use of personal protective equipment (PPE) becomes crucial.

PPE, such as flame-resistant clothing, gloves, and safety goggles, is specifically designed to protect workers from the hazards associated with fire and burns. By wearing appropriate PPE, employees can reduce their exposure to flames or high-temperature environments, ultimately enhancing safety.

Low-level noise, while it may contribute to discomfort or distraction, typically does not require specialized PPE unless it reaches levels that are harmful. Office supplies generally are not hazardous in a way that necessitates protection beyond standard workplace attire. Well-maintained machinery is usually considered safe and operates without posing a significant risk to operators, provided all safety protocols are followed. However, any hazardous materials, such as flammable substances, necessitate specific safety measures, making the use of PPE indispensable in these situations.