Study on particulate matter blocking performance of firefighter protective suits

doi:10.16265/j.cnki.issn1003-3033.2026.03.0733

Abstract

Abstract:

To quantitatively evaluate the particle matter barrier performance of different firefighter protective clothing, a test platform was established using a high-precision environmental chamber and a particle generation device. Aerosol mixtures of sodium chloride, dioctyl sebacate and titanium dioxide particles were released to simulate a smoke-filled fire environment. The inward leakage rate was calculated based on the particle matter concentration distribution inside and outside the garments, allowing a quantitative assessment of the particle matter barrier performance of 4 types of protective clothing. The results demonstrate that firefighting garments and emergency-rescue suits provide inadequate protection for the upper and lower extremities. The light-duty chemical protective coverall exhibits the best overall performance, with an average total inward leakage rate of 4.69%, representing a 92.4% reduction compared to the control group. It demonstrates excellent protective capability. However, all four types of protective clothing are ineffective at blocking small particles with diameters of 0.3-1.0 μm.

Key words: firefighter protective suits, smoke environment, particulate matter, barrier performance, inward leakage rate, particle size

CLC Number:

X924.4安全控制技术

YANG Xinyu, SONG Yuhan, ZHAO Jiaxuan, LIU Xiaoyong. Study on particulate matter blocking performance of firefighter protective suits[J]. China Safety Science Journal, 2026, 36(3): 247-254.

Figures/Tables 12

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工况编号	试验服装
1	基础服装
2	灭火防护服+基础服装
3	抢险救援服+基础服装
4	避火服+基础服装
5	轻型防化服+基础服装

等级	效应量区间	阻隔性能描述
Ⅰ(优异)	d≥0.80	显著优于对照, 实际风险极低
Ⅱ(良好)	0.60 ≤d <0.80	明显优于对照, 可满足火场需求
Ⅲ(一般)	0.20 ≤d <0.60	部分防护,高温浓烟环境受限
Ⅳ(较差)	d<0.20	与对照无实质差异,不推荐浓烟作业