Snorkel

A snorkel is a device used for breathing air from above the surface when the wearer's head is facing downwards in the water with the mouth and the nose submerged. It is commonly used in conjunction with a diving mask and swim fins for the activity known as snorkeling.

History

The concept of the snorkel dates back to ancient times. Early snorkels were made from hollow reeds and were used by swimmers to breathe while keeping their faces submerged. The modern snorkel, as we know it today, has evolved significantly in terms of materials and design.

Design and Function

A typical snorkel consists of a tube approximately 30 centimeters long and 2 centimeters in diameter, with a mouthpiece at the lower end. The tube is usually made of plastic or silicone, and the mouthpiece is designed to fit comfortably in the user's mouth.

Types of Snorkels

There are several types of snorkels, each designed for specific purposes:

• Classic Snorkel: A simple tube with a mouthpiece, often used for basic snorkeling.
• Dry Snorkel: Features a valve at the top that closes when submerged, preventing water from entering the tube.
• Semi-Dry Snorkel: Has a splash guard at the top to reduce water entry, but does not completely seal like a dry snorkel.
• Flexible Snorkel: Includes a flexible section that allows the mouthpiece to drop away from the face when not in use.

Usage

Snorkels are primarily used for snorkeling, a popular recreational activity that allows individuals to observe underwater life in shallow waters. They are also used by scuba divers as a backup breathing apparatus when swimming on the surface.

Snorkeling Technique

To use a snorkel effectively, the user should:

1. Place the mouthpiece in the mouth and ensure a comfortable fit. 2. Keep the head in a horizontal position, with the face submerged. 3. Breathe slowly and deeply through the mouth. 4. Clear the snorkel of water by exhaling forcefully if water enters the tube.

Safety Considerations

While snorkeling is generally safe, users should be aware of potential risks such as:

• Drowning: Always snorkel with a buddy and in safe conditions.
• Hyperventilation: Avoid rapid breathing to prevent dizziness or fainting.
• Marine life: Be cautious of potentially dangerous marine animals.

Also see

• Snorkeling
• Scuba diving
• Diving mask
• Swim fins