Articles by Month: April 2016
Fire-Dex Introduces New H41 Interceptor™ with DuPont™ Nomex® Nano-Flex Technology to Protect Firefighters from Hazardous Particles
Medina, Ohio – April 20th, 2016 – Fire-Dex has launched a new NFPA 1971 compliant hood, the H41 Interceptor™, 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).
The development of this hood was inspired by the reports referenced above; the Firefighter Cancer Support Network Report(1) and the FAST Test Report, Commissioned by the IAFF(2). The first report stated that firefighters have a “significantly increased risk… for a number of cancers, including multiple myeloma, nonHodgkin’s lymphoma and prostate and testicular cancer” (1). This report also discussed that soot and smoke particles readily absorb and hold liquid and gaseous chemicals, that “soot has ultrafine particles that… [are] also absorbed through the skin traveling to most organs including the brain”(1), and that skin adsorption rate increases 400% with every 5°F increase in skin temperature. (1) 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.
The H41 Interceptor™ was developed in collaboration with DuPont™, utilizing their revolutionary new material, DuPont™ Nomex® Nano-Flex, that can block fine particulates almost as well as an impermeable membrane. Unlike FR moisture barrier membranes however, this new lightweight (0.8oz/yd2), “barely-there” material is actually completely breathable; Nomex® Nano-Flex is a non-woven, web technology, made of submicron continuous fibers. The H41 Interceptor™ is constructed with Nomex® Nano-Flex sewn between two layers of 6.0oz/yd2 PBI®/Lenzing to provide the maximum performance for particle barrier filtration, comfort, breathability, thermal protection and protection in flashover condition. The H41 Interceptor™ is patterned to protect the integrity of the filtration system and uniquely designed to promote easy donning and doffing from the stowed position to the SCBA face piece channel.
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.
This chart 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).
The air permeability of the Nomex® Nano-Flex is far superior to all FR moisture barrier films that others are offering. Standard FR moisture barriers are a necessity in turnout gear, where gear can often get wet and such a membrane is necessary to prevent steam burns. With bare skin being against the hood, and with the head and face generating considerably more sweat than most other areas of the body, breathability is an absolute must. Using Nomex® Nano-Flex instead of a standard FR moisture barrier greatly reduces the potential for heat stress.
The H41 Interceptor™ is available for order immediately and can be purchased from an authorized Fire-Dex Distributor.
(1) “Taking Action Against Cancer in the Fire Service”, Firefighter Cancer Support Network, August 2015
(2) Fluorescent Aerosol Screening Test (FAST) Test Report, Commissioned by the International Association of Firefighters (IAFF), conducted by Research Testing Institute (RTI), January 2015
For additional information, please contact Abby Buzon, Marketing Technologies Specialist, at 330-723-0000 or firstname.lastname@example.org.
Last month, Fire Apparatus Magazine featured an article about the evolution and options of harness pants available to those serving in the fire service. Our National Sales Manager, Jeff Koledo contributed to the highlight and we have shared his comments below:
Fire-Dex makes both an internal pant harness (IPH) and egress pockets to house descent devices. “We are in the midst of completely redesigning and reengineering our Class II IPH, which is installed between the outer shell and the inner liner of the pant,” Koledo says. “We have industry-leading firefighters and trainers to help us in creating an IPH that’s firefighter-friendly, simplistic, can be used with the least number of steps, and is lightest in design.”
Fire-Dex’s egress pockets are designed to house the descent devices made by four manufacturers: Petzl, Sterling Rope, CMC Rescue, and RIT Rescue, Koledo points out. “There are four different egress pocket systems, each tailored to a specific descent device or to a generic device design,” he says. “When we designed the egress pockets, most fire departments were using external harness systems, and we wanted to be sure the equipment they used wasn’t bulky or a snag hazard when in use,” Koledo notes.
We will be introducing our redesigned IPH at FDIC later this month. Be sure to visit the Fire-Dex team in booth 1416 to get a first look and to enter our daily giveaways!
FDIC 2016 – Indianapolis, Indiana
Stop by and visit Fire-Dex at Booth 1416. We will feature gear giveaways each day. Drawings will take place Thursday at 5pm, Friday at 1pm and 3:30pm, and Saturday at 12:30pm.