Snorkeling snorkeling in English in English， Snorkeling snorkeling in English. Only from the English name， you can understand the role of snorkel:

When you are resting on the water， swimming or snorkeling， your face looking down or looking for something in the water， you can not raise your breath， only through the breathing tube can breathe the air on the water.

When you are diving， if the water away from the vessel or shore， and the gas cylinders in the air is running out， breathing tubes can make it easier to swim back to the ship or shore， your face can be naturally placed Water.

When the water surface has waves， you can use the breathing tube nozzle height is usually higher than the wave height and avoid water poured into the mouth.