PPE exposed to hazardous conditions should undergo an initial reduction of contaminants:

The correct choice highlights the critical importance of decontaminating personal protective equipment (PPE) as soon as possible while still at the incident scene. This initial reduction of contaminants is vital for several reasons. First, it minimizes the risk of exposure to hazards for emergency responders and the public, particularly if carcinogenic or toxic materials are involved.

Conducting the decontamination process at the scene facilitates a quicker and more effective removal of harmful substances. It reduces the potential for contaminants to spread to other areas, especially when PPE is not inherently designed for extended exposure to hazardous materials.

Additionally, by performing this initial decontamination before returning to the station, responders can prevent the inadvertent introduction of contaminants into the station environment. This proactive approach helps protect other personnel who may not have been involved in the incident.

Options that suggest decontaminating after personnel have changed clothing or at the station itself fail to address the urgency and effectiveness needed in reducing exposure before leaving the scene. Conducting decontamination after equipment restoration is also not prioritized enough, as the immediate health and safety of the responders comes first.