Impact of firefighter hood design on range of motion, noise production and hearing
研究了传统针织头罩与几种颗粒阻挡头罩对消防员活动范围、噪音产生和听力的影响，发现颗粒阻挡头罩会减少旋转活动范围，较厚的头罩会降低听力能力。
Firefighter hoods must provide protection from elevated temperatures and products of combustion while simultaneously being comfortable and limiting interference with firefighting movement or completion of fireground activities. The purpose of this study was to quantify the impact of hood design (traditional knit hood vs several models of particulate-blocking hoods) on wearability measures such as range of motion, noise production, and hearing threshold. Firefighters’ perceptions of wearability were also collected. In a controlled laboratory environment, 24 firefighters performed movement and hearing tests. Wearing particulate-blocking hoods resulted in decreased rotational range of motion, and thicker hoods reduced hearing ability. Design, but not necessarily the number of layers, affected noise production by the hood during head movement.