The Fire Dex® H41 Interceptor™ Hood blocks potentially carcinogenic particulates and other harmful contaminants. Knowing that firefighters have an increased risk for a number of cancers, it’s apparent that first responders need to be protecting their skin from soot and smoke, just as much as their lungs. The H41 Interceptor™ is constructed with a layer of DuPont™ Nomex® Nano Flex that acts as a filter to reduce exposure to persistent carcinogens and other contaminants. This revolutionary material is sewn between two layers of knit 6.0oz PBI®/Lenzing (20%/80%) to provide the maximum performance for particle barrier filtration, comfort, and thermal and flashover protection.
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.
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.