Protective goggles - serve as a safety eye protection. They consist of a visor that is embedded in the spectacle frame with the sides. Protective goggles may also be provided with side covers. The lenses are either clear or have filtering properties. They are made of minerals (glass), organic materials (plastic), or they can be connected from multiple layers. The goggles can also be closed, thus covering the entire area of ​​the eyes and close to the face. They are often equipped with a ventilation system.