What should users do if they experience difficulty breathing while using SCBA?

If users experience difficulty breathing while using SCBA, the appropriate action is to exit the hazardous environment immediately and investigate the cause. This response is critical as it prioritizes the safety and health of the user.

Being in a hazardous environment may expose the user to toxic gases, dwindling oxygen levels, or other substances that can compromise respiratory function. Continuing to remain in such an environment while experiencing breathing difficulties increases the risk of injury or serious health consequences. By removing oneself from the immediate danger, the user can assess their situation and any potential issues with the SCBA equipment in a safer location.

Other responses, such as adjusting the regulator settings or removing the SCBA to take deep breaths, could lead to greater exposure to hazards. Signaling for assistance and staying put could be warranted in some situations; however, prioritizing personal safety by exiting the hazardous area is usually the first step to ensure immediate safety and to address the issue in a controlled manner.