Which of the following is not included in contact precautions?

Contact precautions are a set of guidelines aimed at preventing the spread of infections that can be transmitted through direct or indirect contact with the patient or their environment. These precautions typically include placing the patient in a private room to minimize the risk of transmission, using disposable supplies to avoid cross-contamination, and emphasizing the importance of hand hygiene to eliminate pathogens after coming into contact with the patient or contaminated surfaces.

The use of special filter respirator masks is not a component of contact precautions, as these masks are associated with airborne precautions. Airborne precautions are utilized for infections that can transmit through aerosolized particles, requiring additional protective measures like fit-tested masks or respirators to safeguard healthcare workers and other patients from inhaling infectious agents.

Therefore, the correct answer indicates that special filter respirator masks are not included in contact precautions, aligning with established protocols for infection control.