Which of the following is not a requirement for an air dispersion system?

An air dispersion system does not necessarily need to be located in a separate room, making that option the correct choice. The primary focus of an air dispersion system is to ensure that air is distributed effectively throughout a space so that pollutants or contaminants are adequately dispersed and do not accumulate in one area.

Proper air distribution is vital to achieving the intended effectiveness of the system, as it ensures that air flows evenly and reaches all areas of the designated space. Minimum clearance from walls is also crucial because it allows for unobstructed airflow and prevents dead zones where air may not circulate properly. Lastly, access for maintenance is essential to ensure that the system can be serviced regularly to maintain optimal performance and efficiency.

These elements contribute to the overall functionality and safety of an air dispersion system, emphasizing the importance of their inclusion rather than isolating the system in a separate room.