What action should not be taken when dealing with SCBA if it fails?

When it comes to dealing with a failed Self-Contained Breathing Apparatus (SCBA), continuing to use it until the end of the operation is an inappropriate action. If an SCBA experiences a failure, it could endanger the firefighter's safety, as the primary function of the SCBA is to provide breathable air in hazardous environments. By adhering to safety protocols, a firefighter should first ensure their well-being by ceasing use of the malfunctioning device and reporting the failure immediately. Following emergency exit protocols and switching to a backup SCBA if available are also crucial steps to ensure personal safety in a potentially dangerous situation. Thus, the correct approach involves proactive communication and taking action to replace or exit the hazardous environment instead of prolonging the use of the defective equipment.