Textile and Apparel Science

Evaluating radiant heat resistance for firefighter’s hood materials

  • Bahar Hashemian Esfahani orcid logo (Iowa State University)
  • Guowen Song (Iowa State University)
  • Rui Li (Iowa State University)
  • Farhad Aghasi (Iowa State University)


Firefighters face significant thermal hazards, particularly radiant heat exposure during operations. Crucial in shielding against radiant heat, protective clothing, include hoods, causes significant perspiration duo to its multilayered structure and insulation properties. Sweating increases clothing's heat transfer and thermal conductivity, potentially impacting skin burn severity. This study assesses firefighter hood material's radiant heat protective performance (RPP), examining the impact of perspiration-causes moisture on burn injuries using a specialized Sweat Simulation RPP tester. Two regular hood composites underwent testing in dry, wet and active sweating conditions. Results reveal that moisture reduces radiant heat protection, decreasing time to burn injuries compared to dry condition. Increasing moisture content from 40% to 80% raises heat transfer in both materials, indicating reduced protection. Conversely, increasing active sweating from 5g to 10g extends the time to second/third degree burns, signifying enhanced protection. This research contributes to advancing firefighter hoods for improved protection and comfort.  

Keywords: firefighter hoods, radiant heat exposure, sweat, hood performance

How to Cite:

Hashemian Esfahani, B., Song, G., Li, R. & Aghasi, F., (2024) “Evaluating radiant heat resistance for firefighter’s hood materials”, International Textile and Apparel Association Annual Conference Proceedings 80(1). doi: https://doi.org/10.31274/itaa.17485



Published on
26 Jan 2024