Snorkel (swimming)

A snorkel is a long tube.

It helps you breathe air. You use it in the water. You put it in your mouth.

This lets you see under the waves. Your head stays face down. You can watch fish swim. Some tubes are shaped like the letter L. They can be made of plastic or rubber. Some tubes have a clip. You can clip them to your mask. It is a fun way to swim!

A snorkel is a tool for breathing. It lets you breathe air while swimming.

You can keep your face in the water. This helps you see under the waves.

Most snorkels are curved tubes. They look like the letters L or J. They are made of plastic or rubber. Some have a mouthpiece for your mouth. You can clip them to a mask. Some tubes have a float valve. This valve stops water from coming in.

Long ago, people used hollow reeds to breathe.

In the 1920s, people made new types of tubes. The word "snorkel" came from a German word. It used to describe air for submarine engines. In 1950, people started using it for swimming.

Some masks have the tube built in. These are called integrated masks. Many countries do not sell them because they can be unsafe. It is better to use a separate tube. You can also breathe deeply to help. This keeps the air fresh in the tube.

A snorkel is a handy tool for breathing underwater. It lets you keep your face down in the water. This allows you to see clearly beneath the waves.

You can use a separate tube or an integrated mask. An integrated mask has the tube built right into it. These are mostly for swimming on the surface. A separate tube is very useful for many activities. You can use it for freediving or underwater rugby. It is also helpful for people using scuba gear.

Most snorkels are curved tubes shaped like the letters L or J. They are made from plastic, rubber, or light metal.

A mouthpiece is fitted to the bottom end. You can attach it to your mask with a clip. Some tubes have a special float valve at the top. This valve stops water from flooding into the tube. Other snorkels have a water trap to drain liquid.

You must be careful about how you breathe. Some old air stays in the tube after you exhale. This is called respiratory dead space. Breathing deeply can help keep the air fresh.

People have looked for ways to breathe underwater for a long time. Aristotle once wrote about divers using breathing instruments. He said they looked like an elephant's trunk.

Some think snorkeling began in Crete 5,000 years ago. Sponge divers there used hollow reeds to breathe. In the 1400s, Leonardo da Vinci drew designs for breathing tubes. His ideas included cane tubes and a float.

These early ideas helped lead to the tools we use today.

Modern snorkels have a very interesting history. In 1927, Jacques O'Marchal used a mask and tube.

In 1929, Barney B. Girden applied for a patent for a swimming device. He wanted swimmers to focus on their strokes. In 1938, Yves Le Prieur made a mask with built-in hoses. The word "snorkel" actually comes from a German word. It was first used for air intakes on U-boats. By 1950, the word was used for swimming tools.

There are many different ways to wear a snorkel. Some people wear them on the side of their head. This is the most common way to use them.

Others use a front-mounted snorkel for racing. This type helps swimmers move through the water easily.

Competitive swimmers often use these to improve their speed. Some newer masks cover the whole face. The Easybreath mask is one example from 2017. These tools help us explore the amazing world under the sea.

A snorkel is a specialized device designed for breathing atmospheric air while a person's head is face downward in surface water.

When using a snorkel, the wearer's mouth and nose remain submerged, but they can still draw air from above the surface. This tool is vital for many aquatic activities, ranging from casual surface observation to intense sports. Snorkels can be separate units or integrated directly into a swimming or diving mask. While integrated masks are generally suitable only for surface snorkeling, separate devices offer more versatility. They can be used during breath-hold activities like spearfishing, freediving, or underwater rugby. They are also used by divers to breathe while at the surface using scuba equipment.

Most standard snorkels are curved tubes that resemble the letters "L" or "J."

They are typically constructed from materials like plastic, synthetic elastomers, rubber, or light metal. To keep the device in place, manufacturers include a loop or clip to attach it to a mask strap. Some snorkels use their own dedicated head strap, while others are simply tucked between the mask and the head.

To manage water entry, some models feature a float valve at the top to prevent flooding if the opening is submerged. Other designs include a water trap and a purge valve, which are intended to help the user drain water out of the tube.

Despite their usefulness, snorkels create a physiological challenge known as respiratory dead space. This occurs because some exhaled air remains trapped inside the tube after a person breathes out. When the user takes a fresh breath, they inhale a portion of that old air along with the new air. This reduces the total volume of fresh air being inhaled. If this continues, it can lead to a buildup of carbon dioxide in the blood, a condition called hypercapnia. The risk increases if the tube has a large internal volume or if the person's tidal volume—the amount of air moved in a single breath—is small. Including the volume of a mask in the breathing circuit can also increase this dead space. Users can sometimes counteract this by breathing more deeply, which reduces the dead space ratio.

Humanity has explored underwater breathing for thousands of years. Aristotle once described divers using respiration instruments that resembled an elephant's trunk.

Some evidence suggests that snorkeling may have started in Crete about 5,000 years ago. There, sponge divers used hollowed-out reeds to breathe while retrieving natural sponges for trade. In the fifteenth century, Leonardo da Vinci sketched designs for a breathing device. His concept used cane tubes and a mask for the mouth, along with a float to keep the tubes above the water.

The modern era of snorkeling equipment saw rapid invention during the early twentieth century. In 1927, Jacques O'Marchal was observed using an early face mask and breathing tube.

In 1929, Barney B. Girden filed a patent for a device that allowed swimmers to focus on their strokes while breathing through a tube. This patent was eventually registered in 1932. By 1938, Yves Le Prieur introduced the "Nautilus," a full-face mask with hoses and a ball valve. The word "snorkel" itself has a unique origin. It is derived from the German word "Schnorchel," which originally described air intakes for U-boat diesel engines during World War II. By 1950, the term had transitioned into common use for swimming equipment.

There are several distinct ways to position a snorkel on the head. The side-mounted snorkel is the most common style used for general diving and snorkeling.

However, some swimmers prefer a front-mounted snorkel. This type is often used in competitive swimming and finswimming because it improves the swimmer's hydrodynamic profile, allowing them to move through water more efficiently.

In the mid-1950s, Dick Bonin introduced the flexible-hose snorkel, and by 1980, an exhaust valve was added to make clearing water easier. Modern manufacturing has also improved safety and comfort. Following reports of allergic reactions in 1977, many manufacturers began using hypoallergenic gum rubber and medical-grade silicone for mouthpieces.

Safety regulations have shaped how snorkels are designed and sold. Some countries have banned the manufacture or sale of certain integrated mask-snorkel combinations because they are considered unsafe. For example, the French government suspended the sale of ball-valve snorkel-masks in 1989. In the 2000s, very few integrated mask models remained in production, such as those made in Greece. However, new technology continues to emerge, such as the "Easybreath" mask released by Decathlon in 2017. These modern designs are specifically intended for surface snorkeling only. This evolution shows how technology continues to balance the desire for underwater exploration with the necessity of respiratory safety.