Skip to Firefighting Hood Inspection Guide

Fluorescent Aerosol Screening Test

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BarriAire Gold Hoods feature an ultra‑light weight inner layer of DuPont Nomex® Nano Flex fabric. This innovative particulate barrier blocks 95% of harmful contaminants and potentially carcinogenic particulates .20 microns in size or larger.

FAST UV-light photographs without Nomex® Nano Flex (left) and with Nomex® Nano Flex (right) illustrating after particle exposure for the test subject’s head and neck; bright yellow areas show where particles penetrated the ensemble.

Above test performed on complete coverage hood without turnout coat. Test was performed at RTI (Test #2322, DOD Test Operations Procedure 10‑2‑022 modified for head form). These conditions may not be typical of the conditions encountered in actual situations. The results of these tests are only predictions under these specific laboratory conditions. The user is solely responsible for any interpretations of the test data provided by DuPont. DUPONT MAKES NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE AND ASSUMES NO LIABILITY IN CONNECTION WITH ANY USE OF THIS INFORMATION. This data is not intended for use by the user or others without expressed written consent of DuPont. DuPont and Nomex are trademarks or registered trademarks of E.I. du Pont de Nemours and Company or its affiliates.

Firefighting Hood Inspection Guide

In an effort to aid fire departments with the inspection of their firefighting hoods as well as the Nomex® Nano Flex particulate barrier, the following two-step porcess is recommended.


Begin by following NFPA 1851 – Current Edition Guidelines for Firefighting Hoods: Hood elements shall be inspected for the following:
  1. Soiling
  2. Contamination
  3. Physical damage such as follows:
    Rips, tears, and cuts
    Thermal damage (charring, burn holes, melting, discoloration of any layer)
  4. Shrinkage
  5. Loss of material elasticity or stretching out of shape
  6. Loss of seam integrity and broken or missing stitches
  7. Loss of face-opening adjustment
  8. Label integrity and legibility


After completing the NFPA 1851 – Current Edition guidelines for advanced inspection of hood elements, PGI recommends the following for particulate barrier inspection.
  1. The 3-ply composite fabric, Nomex® Nano Flex particulate barrier quilted between jersey knit BarriAire Gold fabrics, can be easily inspected with a flashlight for structural integrity to identify rips, tears, and cuts.
  2. Please be advised that the quilting holes you see are not detrimental to particulate barrier performance, Nomex® Nano Flex fabric with our quilting blocks more than 95% of particulate which increases to 98% after 20 launderings and remains above 98% through 100 launderings.
  3. Any necessary advanced evaluations of Cobra BarriAire Gold Hoods shall be conducted by PGI through the return authorization process in accordance with PGI's ISO 9001 certification. Please call Customer Service at 800‑558‑8290 for all return inquiries.

Nomex® Nano Flex Good Condition

Nomex® Nano Flex Overlapped Good Condition

Tear in Nomex® Nano Flex