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Article number: H41PSNBFHLG-One Color -Large (24")
Availability: In stock

The H41 Interceptor™ Hood is made with a layer of DuPont™ Nomex® Nano Flex inside that acts as a filter to reduce firefighters' exposure to persistent fireground carcinogens and other contaminants. We've used this revolutionary material sewn between two layers of knit 6.0oz PBI®/Lenzing (20%/80%) to provide the maximum performance for particle barrier filtration, comfort, and thermal & flashover protection. SCIENTIFIC DATA The H41 Interceptor™ blocks 95% of particulates at .2 micron in size or larger. For perspective, there are 25,4000 microns in one inch and a human hair is about 75-100 microns wide, so a .2 micron particulate is about 500x smaller than a strand of hair. Testing has shown that the particulates sized at less than .2 microns don't have enough mass to make it through the double layer knit and the Nomex® Nano Flex; essentially meaning that this hood blocks 100% of particulates less than .2 microns. Nomex® Nano Flex is a revolutionary new material that can block fine particulates almost as well as an impermeable membrane. Unlike FR moisture barrier membranes however, this new lightweight (0.5oz/yd2), “barely-there” material is actually completely breathable; Nomex® Nano Flex is a non-woven, web technology, made of submicron continuous fibers. This chart compares regular nonwoven fabrics, FR moisture barriers, and Nomex® Nano Flex, demonstrating how incredibly thin, light, and breathable this material is, while still being able to effectively filter dangerous soot and smoke particles. THE NEED FOR A PARTICLE BARRIER The H41 Interceptor™ with Nomex® Nano Flex was designed to keep potentially carcinogenic particulates and other harmful contaminants off of firefighters’ jaws, faces, and necks; areas identified as highly absorptive and more permeable than other areas of skin(1), and are likely not getting enough protection from hazardous particles with the FR knit hood technology that is currently available(2). With the evidence presented in the Firefighter Cancer Support Network Report - that soot and smoke particles readily absorb and hold liquid and gaseous chemicals (such as the carcinogens and toxins shown to be released in modern house fires), that these "ultrafine particles... [are] absorbed through the skin traveling to most organs including the brain"(1), and knowing that firefighters have a “significantly increased risk… for a number of cancers”(1) - it's becoming apparent that our first responders need to be protecting their skin from soot and smoke, just as much as their lungs. The FAST Test Report demonstrated that particles at 2.5 micron size penetrated the standard FR knit hood (soot and smoke particles are usually 1 micron or less) and left a concentrated, heavy deposit on the subject’s neck, cheeks, ears and jaw.(2) See attached pictures

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