Definition - What does Visor mean?
A visor, or face shield, is a heat-reflecting or wire screen secondary protection agent. A visor is not considered sufficient protection on its own and should be used with primary personal protective equipment (PPE) such as goggles or safety spectacles. Visors are used to protect against impact hazards or chemical splash hazards.
Safeopedia explains Visor
Visors or face shields provide full face protection and have transparent windows that can be constructed from a wide variety of materials and in a variety of thicknesses depending on the specific task or tasks they are designed for. Visors are generally used to protect the face against heat hazards including radiant heat, molten metal splashes, or flying sparks.
Health and safety professionals should determine the correct specifications for a visor based on the task to be performed and the hazards encountered. They should also ensure that the products they chose are ANSI certified.
Specialized visors include those constructed for arc flash protection, welding and heat and radiation protection.