GORE® Particulate Hood
Protection + Comfort + Durability + Trust … brought to you at an affordable price
Why the GORE® Particulate Hood?
The GORE® Particulate Hood provides excellent particulate-blocking throughout the entire hood — not just in selected areas.
Available in two knit options — Ultra C6 (black) and Nomex® blend (white), the patent-pending design of the GORE® Particulate Hood delivers a more comfortable, natural feel like you are accustomed to when you wear a traditional hood.
As with all products from Gore, the GORE® Particulate Hood has best-in-class durability. It retained its level of particulate-blocking performance after 100 wash cycles at a verified ISP.
The GORE® Particulate Hood combines Gore’s industry-leading expertise in barrier technology with the skill of one of the most respected hood manufacturers, Majestic Fire Apparel.
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GORE® Particulate Hood — Protection
The innovative design of the GORE® Particulate Hood integrates a particulate-blocking layer that stops 99.9% of particulates between 0.1 and 1.0 microns in size1. This level of performance translates to improved protection against harmful contaminants found at the fireground when compared to traditional hoods.
Fluorescent Aerosol Screening Test (FAST) Results
The bright areas (i.e., fluorescence) indicate particulates on the skin. The image on the left shows significant levels of particulates on the person’s temple, ear, and neck. The image on the right shows no visible particulates on the skin when the GORE® Particulate Hood was worn.
Traditional hood donned properly on mask
GORE® Particulate Hood donned properly on mask
1 As defined by the Particulate Blocking Test included in the proposed 2018 edition of the NFPA 1971 Standard
GORE® Particulate Hood — Durability
In the fire service, we have learned that washing turnout gear is one of the best ways to protect ourselves from exposure to harmful contaminants. Hoods are being washed more frequently, translating to a need for increased durability.
Particulate-Blocking Test Results
To ensure that the GORE® Particulate Hood meets this need for added durability, samples were washed 100 times, some at a verified ISP location and others in a home laundry. Samples from both sets were tested for their ability to block particulates using the Particulate Blocking Test included in the proposed 2018 edition of the NFPA 1971 Standard. In addition, samples were tested as received (new) and after the pre-conditioning requirements specified in the Standard – two cycles of ten wash/dry and one convective heat cycle, for a total of 20 wash/dry cycles and two convective heat cycles.
The GORE® Particulate Hood exceeded the Standard’s minimum requirement of 90% efficiency in this test across the entire particulate size range of 0.1 to 1.0 microns:
|As received (new)||99.9%|
|NFPA 1971 pre-conditioning||99.9%|
|100 at-home laundry cycles||99.9%|
|100 laundry cycles at a verified ISP||99.9%|
Fluorescent Aerosol Screening Test (FAST) Results
Some of the hoods washed at the verified ISP were tested using the FAST method. The bright areas (i.e., fluorescence) indicate particulates on the skin. The left image shows no visible particulate ingress when wearing a new GORE® Particulate Hood, and the image on the right shows Gore’s hood after 100 wash/dry cycles at a verified ISP. These results clearly showed that the GORE® Particulate Hood maintains its high level of protection even after extensive washing.
New GORE® Particulate Hood
GORE® Particulate Hood After 100 Washes
The objective of the FAST test is to evaluate protective ensembles by visually identifying aerosol penetration and infiltration after a person performs a specified series of movements. The FAST test uses black-light (i.e., ultraviolet) photography to document where particulate ingress occurs.
- Dressed in the protective ensemble (e.g., turnout gear), the person performs the specified movements for 30 minutes while in a chamber containing fluorescent aerosol particulates in the 0.1 to 10 micron range at a concentration of 170 mg/m3.
- The person is exposed to a constant 10 mph wind, and he/she rotates every 7½ minutes to ensure that each side is exposed to the particulates evenly.
- The person is photographed before and after exposure to the particulates.
Particulate Blocking Test
For the proposed Particulate Blocking Hood Option in the 2018 edition of NFPA 1971, the Particulate Blocking Test evaluates the particulate-blocking efficiency of the submitted composite.
- This test is performed in accordance with ASTM F2299/F2299M with a modification for testing a composite with an air permeability of less than 1.7 liter per minute (L/min).
- The challenge particulate that is used in the test is latex spheres ranging from 0.1 to 1.0 micron in diameter.
- Composites are required to meet a minimum of 90% efficiency across the specified particulate range.