Patent ID: 8819869

Claim:
A personal protection system comprising: a helmet to be worn over the head of the wearer; a hood disposed over said helmet, said hood having a transparent face shield formed from flexible material, said face shield having opposed top and bottom portions and a longitudinal axis that extends top-to-bottom along said face shield; a fastening assembly attached to said helmet for holding said hood over said helmet and holding said face shield in front of the face of the wearer, said fastening assembly having plural spaced apart fastening members that engage said hood so that, when said hood is disposed over said helmet and said fastening members engage said hood, said face shield has a radius of curvature that varies along the longitudinal axis of said face shield such that at the top portion of said face shield said face shield has a large radius of curvature and at the bottom portion of said face shield, said face shield has a small radius of curvature; and a ventilation assembly integral with said helmet, said ventilation assembly having a fan that draws air into said hood and at least one duct through which the air from said fan is discharged within said hood.