What is a disadvantage of using dry chemicals for fire suppression?

Using dry chemicals for fire suppression can result in leaving a residue, which is a significant disadvantage. This residue can contaminate the environment, damage sensitive equipment, and create additional cleanup challenges after the fire has been extinguished. In many scenarios, such as in an airport setting, ensuring that the area is returned to a safe and usable condition is crucial for both operational functionality and passenger safety.

This residue can also pose risks; for instance, if not properly cleaned, it may lead to slips or falls or could cause further corrosion over time, particularly on certain materials or surfaces. Therefore, while dry chemical agents can be effective in suppressing fires, the aftermath of their use must be carefully managed to mitigate potential negative impacts.