Fire Dex® H41 Interceptor Hood
FLEXIBLE | BREATHABLE | PARTICLE BARRIER
With DuPont™ Nomex® Nano Flex, the H41 Interceptor™ Fire Hood is designed to block potentially carcinogenic particulates and other harmful contaminants.
Certified to NFPA 1971, 2013.
The Fire Dex® 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.
PROPERTIES & BENEFITS
- Particulate Barrier with Submicron Pores
- Comfortable, Thin, & Lightweight
- Very Breathable – High Air Permeability
- Provides Additional Thermal Insulation
- Laundry Durable
- Available in two sizes: Medium (head circumference up to 22″), Large (head circumference 22″ – 24″)
The H41 Interceptor™ blocks 95% of particulates at .2 micron in size or larger. For perspective, there are 25,400 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 data demonstrates how very thin, light, and breathable this material is, while still being able to effectively filter particles:
The data below demonstrates the remarkable difference in particulate blockage from a standard FR Knit Hood to an FR Knit Hood with Nomex® Nano Flex (measuring from 0.5-0.2 microns).
Additionally, adding Nomex® Nano Flex inside the hood’s 2 layers gives the hood nearly a 25% boost in TPP, despite being a mere 0.5 oz/yd2.