Abstract

A helmet having ventilation for fog management and respiration. The helmet has a shell shaped to define a cavity for a wearer's head. A transparent shield is engaged with the shell. The shell and shield cooperate to fully enclose the wearer's head. The shield is moveable between an open and a closed position. The shield has a visor attached thereon and moveable therewith. The helmet has at least one first air inlet and first air outlet. The shell and the inner surface of the shield cooperate to define a first airflow path that enables air to enter through the first air inlet, flow across the inner surface of the shield to draw off moisture from inner surface of the shield to control fogging thereof, and exit through the first air outlet. The helmet also has at least one second air inlet and second air outlet. The shell defines a second airflow path that enables air to enter from the cavity through the second air inlet and exit through the second air outlet, so that air exhaled by the wearer is carried away to the second air outlet. The helmet may include a separator that separates the first airflow path from the cavity. The separator may have at least one third inlet and third air outlet to allow air to pass through the separator along the first airflow path. The helmet may include at least one fourth air inlet to produce an increased draft within the second airflow path.