a crash. Racing helmets also have face shields (narrower than motorcycle helmets) to protect against fire and impact. Riot protection helmets have visors to protect the eyes and face from projectiles and impact. Safety helmets, also called hard hats, used by chainsaw operators and construction workers often have visors to protect the eyes from impact. Space suit helmets have gold-impregnated face shields to protect astronauts from the direct rays of the sun. Gallery See also Glasses Helmet Visor Protective headgear Personal protective equipment References Eye Protective gear