What is the maximum duration that vehicles can run when connected to an Exhaust Extraction System (EES)?

The maximum duration that vehicles can run when connected to an Exhaust Extraction System (EES) is set to 3 minutes to ensure the system operates effectively while managing exhaust emissions and maintaining a safe environment for firefighters and personnel in the area. This time limit allows for the complete removal of harmful exhaust fumes without compromising safety.

Exhaust Extraction Systems are designed to efficiently capture and remove exhaust gases produced by running engines, and a 3-minute cap strikes the right balance between allowing enough time for necessary engine checks or brief idle while ensuring that the concentration of hazardous gases is minimized. Running vehicles for longer than this duration can lead to increased exposure to harmful emissions, which is a significant health concern in firefighting facilities where air quality is critical.

Other options exceed this safe time frame, potentially leading to adverse health effects or a buildup of toxic gases in the station environment. Therefore, adhering to the 3-minute guideline is crucial for maintaining safety and compliance with health standards within fire departments.