Which is a main risk of improper SCBA modification?

The main risk of improper SCBA modification is potential equipment failure. SCBAs are carefully designed and engineered to meet specific safety standards and functionality. Any modification that alters their design can compromise their performance and reliability, leading to serious safety risks.

For instance, if someone incorrectly modifies breathing hoses, pressure regulators, or masks, it could result in leaks or malfunctions during use. This failure could prevent the wearer from receiving the needed air supply, especially in life-threatening situations where every breath counts. Ensuring that SCBAs remain in their original, factory-approved condition is crucial for the safety of the user.

Other options, while they may seem appealing, do not present realistic or practical outcomes from improper modification. Enhanced comfort or increased air supply duration may seem beneficial, but they can only be achieved through designed adjustments approved by manufacturers. Better visibility is also possible only through appropriate, safe enhancements, rather than ill-advised modifications. Thus, understanding the risks tied to alterations is vital for maintaining optimal safety and performance in hazardous environments.