Safety helmets are the most common type of head protection that is used. These are designed with a rigid shell that resists and deflects blows to the head. There is also a suspension system inside the hat that acts as a shock absorber and insulated inner to prevent electric shocks.
EN392 standards apply to safety helmets and other head protection that are designed to protect static personnel from falling objects and other hazards that high risk workplaces pose. To comply to EN397 safety helmets must also offer sufficient protection against penetration from sharp or pointed objects. These helmets also require to offer ergonomics that offers a suitable protected area fully protecting the wearer from a range of hazards. Additional these helmets require either a chin strap or some anchor point to correctly protect the wearer. These chinstraps are designed too provide protection and keep the helmet in place in the event of an impact but must not cause any form of strangulation hazard.