How much air does the SCBA hold in cubic feet?

The correct measurement for the air capacity of the Scott Air-Pak X3 Self-Contained Breathing Apparatus is 66 cubic feet. This capacity is significant because it directly affects the duration of use for the firefighter wearing the SCBA, enabling them to remain in dangerous environments for a period that allows for effective action while maintaining adequate breathing support. Understanding the air capacity is crucial for calculating operational limits, ensuring safety, and planning for emergency situations in which SCBAs are needed. Choosing accurately from available options emphasizes the importance of familiarizing oneself with the specifications of firefighting equipment for appropriate training and preparedness.