Snorkel (swimming)

Snorkel (swimming) is a device used in swimming and underwater diving that allows the user to breathe air from above the water surface when the wearer's mouth and nose are submerged. Snorkels are commonly used in recreational activities such as snorkeling and scuba diving, and in professional contexts, such as underwater construction and salvage operations.

Design and Function

A typical snorkel consists of a tube that is usually J-shaped or L-shaped, measuring about 30 centimeters long and with a diameter of around 2 centimeters. One end of the tube is equipped with a mouthpiece that the user bites on to secure the snorkel, while the other end extends above the water surface to allow air intake. Some snorkels also feature a purge valve to expel water from the tube.

Types of Snorkels

There are several types of snorkels, including the classic snorkel, the dry snorkel, and the semi-dry snorkel. The classic snorkel is a simple tube with a mouthpiece, while the dry snorkel has a valve at the top that prevents water from entering the tube. The semi-dry snorkel has a splash guard that reduces water entry but does not completely prevent it.

Safety and Usage

While snorkels can enhance the swimming and diving experience, they also require proper usage to ensure safety. Users should be aware of potential risks such as hyperventilation, carbon dioxide buildup, and water aspiration. Training in snorkel use is recommended, particularly for scuba diving applications.

See Also

• Scuba diving
• Underwater diving
• Swimming (sport)