What does the "X3" signify in Scott Air-Pak X3 SCBA?

The "X3" in Scott Air-Pak X3 SCBA indicates the model series for enhanced performance. This designation is part of the branding strategy that reflects advancements in technology, design, and efficiency that distinguish this series from others. The "X" often conveys innovation and improvement, while the "3" may suggest that it builds on previously established models to offer superior features, comfort, and safety for the user.

Understanding this context helps to appreciate how the Scott Air-Pak X3 represents a targeted evolution in self-contained breathing apparatus design, aimed at improving the functional capability and ease of use for firefighters and emergency responders.