Scuba diving is great fun, but as you spend the whole dive underwater there is always some risk involved in it. This makes it very important to have a safe dive, for that one must have the proper equipment.
You might think that scuba diving has cylinders and regulator, why the breathing tube is one of the standard equipment? When you are in the water surface to rest or swim or when you are looking for things, then diving snorkel helps you in breathing. It also helps to reduce the consumption of air in the cylinder.
Second, when the water has waves, diving snorkel can also help in letting water poured into the mouth. If you are adventurous about water sports, then you can also try Cozumel snorkeling.
While in snorkeling, a breathing tube is a piece of necessary equipment, you don't need to look up in the water, but can stay in the water for a whole day.
General diving snorkel design is open at one end, and the other end is for an around mouthpiece of tube bending, most of the diving snorkel is made by silica gel and plastic material mixes, diving snorkel top circular tube is usually made of a semi-rigid plastic, while the lower portion of around mouthpiece is made of silica gel material.
If you are looking to buy a full face snorkel mask, you need to choose the correct type and size of the mask according to the shape of your face.