A Study on Proposed Improvement Directions for SCBA Based on Satisfaction Analysis from Surveys

This study analyzed satisfaction levels with a self-contained breathing apparatus (SCBA) based on a survey and examined the influence of firefighters' physical characteristics on SCBA satisfaction, providing directions for SCBA improvements. The results indicated that overall satisfaction with SCBA was below average. For the harness, heaviness was rated the lowest, whereas maintenance received the lowest satisfaction rating for face masks. The highest priorities for improving the SCBA were heaviness, wearability, and functionality. In terms of joint range of motion, firefighters reported low satisfaction with movements in which body interference with the SCBA occurred (such as trunk flexion and cervical extension). Additionally, firefighting activities requiring strength and precise movements (such as passing through stud spaces, obstacle courses, and entry/exit through windows) showed low satisfaction. Satisfaction with firefighting activities was relatively low among firefighters of lower heights and weights. Therefore, lightweight SCBAs are essential for efficient firefighting with improvements in wearability and maintenance, such as ergonomically designed harnesses and flexible easy-to-clean materials. In addition, adjustable features for the backplate height, belt, and strap length/tightness are required to accommodate a range of physical characteristics.