Vented full-brim (Type 1, Class C) hard hats are vented to help dissipate heat and have a brim around the entire hat to shed rain, reduce glare, and protect the face and neck from sun. Type 1 hard hats protect wearers from vertical impacts. Vents on Class C hard hats allow a clear path for electrical arcing, so they should not be used in locations where electrical hazards are present. While front-brim hard hats are generally used indoors and areas where the sun is not harsh, full-brim hard hats provide additional protection outdoors where the sun is harsh.
