Helmets
A helmet is a metal or plastic hat that protects your head from falling objects and impacts. Required by law in some places, helmets are used in hazardous work areas and inside factories. They are mainly classified into four types: MP type, American type, baseball cap type, and folding type. The MP type has a structure that absorbs the impact of flying objects, and features a simple construction. This is the standard type of helmet. The American type has a rib that protrudes in front and is a commonly used form. Some have ventilation holes to eliminate stuffiness, others have a transparent eave that expands the field of view at the top, and others have a shield to protect the face. The foldable type can be folded and stored in a small size, and is also highly safe. It is also designed with emphasis on functionality such as quick wearing in an emergency.