Which of the following is NOT listed as a potentially infectious material?

Filtering face masks are not categorized as potentially infectious materials because they are personal protective equipment (PPE) designed to prevent the transmission of infectious agents rather than being a source of infection themselves. The primary role of filtering face masks is to protect healthcare workers or individuals from inhaling infectious particles, which differentiates them from items that may carry infectious agents or bodily fluids.

In contrast, saliva in dental procedures, contaminated bodily fluids, and unattached tissue from a person are all considered potentially infectious materials because they can harbor pathogens such as bacteria, viruses, and other microorganisms that are capable of causing infection. These materials pose a risk if there is exposure to the skin or mucous membranes, making it crucial to handle them with appropriate precautions as per infection control protocols.