What is the last step to perform before donning the remainder of your protective equipment while using SCBA?

Before donning the remainder of your protective equipment while using Self-Contained Breathing Apparatus (SCBA), it is crucial to check the facepiece for a proper seal. This step ensures that the respirator will effectively protect you from airborne contaminants. A proper seal is essential because it prevents any unfiltered air from entering the mask, which could pose serious health risks in hazardous environments. By performing this check, you confirm that the facepiece sits correctly against your face, allowing for maximum protection as you move into potentially dangerous situations.

Ensuring the facepiece fits correctly also contributes to overall comfort during operations, reducing the likelihood of distractions caused by air leaks or discomfort. Therefore, this step is a vital component of safety procedures in firefighting and emergency response.