What is one of the key limitations of using PPE?

The key limitation of using personal protective equipment (PPE) is that it can be uncomfortable and limit mobility. This discomfort can lead to reduced effectiveness, as workers may not use the PPE properly or may become distracted due to the limitations imposed by the gear. In some cases, the bulkiness or weight of certain protective equipment can hinder a worker's ability to perform their job effectively, creating potential safety hazards.

The other options do not reflect accurate limitations of PPE. It is not correct to say that PPE is always effective regardless of conditions, as its effectiveness can vary based on factors such as fit, maintenance, and the type of hazard present. Additionally, PPE is not universally mandatory in every situation; its use should be determined based on a risk assessment of the workplace environment. Finally, while PPE is crucial for worker safety, it cannot completely replace other safety protocols, such as engineering controls or administrative measures, which are also essential in creating a safe work environment.