Ladder Operations Manual Practice Test 2026 - Free Ladder Operations Practice Questions and Study Guide

Hood materials in a PPE set are chosen for flame resistance and protection around the head and neck. A hood made from Nomex and PBI blends flame-resistant fibers with superior high-temperature protection, which is why it’s standard in many protective ensembles. It stays flexible under a helmet and guards against radiant heat, embers, and brief flame exposure. Kevlar is strong and heat-resistant to some degree, but it doesn’t offer the same level of thermal protection for the face and neck as Nomex/PBI. Carbon hoods aren’t typically used because they’re not well suited to the flexibility and comfort required, and cotton hoods burn and provide very little protection. So the hood material listed as part of the PPE set is Nomex/PBI.