Safety goggles are a type of eye protection that are designed to protect the eyes from a variety of hazards, including flying debris, chemicals, dust, and other harmful substances. They are commonly used in industrial, construction, and laboratory settings, as well as in sports and other activities where eye protection is necessary.

The most basic form of safety goggles is the single lens design, which is made of clear plastic and fits snugly over the eyes to create a barrier between the eyes and the surrounding environment. These goggles are often used in construction, manufacturing and other settings where dust, flying debris and other particulates are present.

Another popular type of safety goggles are the sealed goggles which are specifically designed to protect the eyes from chemicals and other harmful liquids. These goggles feature a seal around the lens, which helps to prevent liquids from getting inside the goggles and potentially causing harm to the eyes. These goggles are commonly used in laboratory, chemical industry.

Safety goggles can also come with features like ventilation to prevent the goggles from fogging up, which can be a safety hazard in certain situations. Some goggles are also equipped with UV protective features, which helps to protect the eyes from ultraviolet rays.

It's also important to ensure that the goggles fit snugly over your face and around your eyes, this will ensure that they don't slip off during use, and are providing full coverage of the eyes. Adjustable straps, rubberized or foam gaskets are also features that could help in providing better fit.

To ensure the longevity of the goggles, they should be regularly cleaned and inspected for any signs of damage. They should be replaced if they become scratched or show any other signs of wear and tear.

It is also important to note that goggles should be worn whenever the risk of eye injury is present, regardless of the duration of the activity. Even a short exposure to a hazardous substance or flying debris can cause serious eye injury or damage.