Which of the following can be a route of cross-contamination during a restoration project?

The choice of HVAC duct flows as a route of cross-contamination during a restoration project is correct due to the role that duct systems play in air circulation within a building. When restoration work is being performed, especially in environments affected by water damage, sewage, or other contaminants, the air quality can be severely compromised. If contaminated air from one area enters the HVAC system, it can be distributed throughout the building, thus impacting previously unaffected areas.

This distribution can lead to the spread of particles, pathogens, or moisture that may not only worsen the existing contamination but can introduce new contamination hazards as well. Therefore, proper containment and filtration during drying and restoration activities are crucial to prevent contaminants from moving through the HVAC system.

While emergency exits, nearby buildings, and personal equipment could contribute to cross-contamination risks, they do not directly facilitate the widespread dispersal of contaminants in the same manner that a functioning HVAC system does. Proper management of HVAC operations during restoration is essential for maintaining safety and controlling contamination spread.