iEvac provides protection against fire-related gases including carbon monoxide, the number one cause of injury or death in a fire situation. iEvac protects lungs, head, eyes and face. It is easy to don, one universal size and can be worn with eyeglasses, beards and long hair. There is no maintenance required and the hood is a clear material resulting in an unobstructed view with twin cartridges for easier breathing. iEvac Smoke/Fire Hood is certified to the American National Standard and the U.S. Department of Homeland Security has designated iEvac as a qualified anti-terrorism technology.