A snorkel on a vehicle is a device that allows the engine to draw in air from a higher  cleaner location rather than from the ground level where it may be contaminated by dust, water, or other debris. This is frequently applies to cars that  drive long distances, high speed, off-road, and or in harsh conditions, to help protect the engine and improve its performance.

The snorkel is typically mounted on the side of the vehicle,the snorkel enables the engine to keep running smoothly at its best and optimum performance in deep water or sand,  even in conditions where the air quality at ground level is poor. This can be helpful in off-road situations where the vehicle may need to navigate through deep water or across soft, sandy terrain. Some people also fit the snorkel on their cars for decorative purposes only.