Commercial diving equipment is used by individuals who want to go underwater for extended periods of time and is available in a number of different shapes and sizes. The most important type of commercial diving equipment is the self contained underwater breathing apparatus which comes in two main categories: Open circuit and closed circuit gear. In addition to the breathing apparatus itself, however, there is an extensive variety of additional commercial diving equipment that a scuba diver can depend on to make their scuba diving experience more pleasant.
Open circuit commercial diving equipment is the simplest type of dive gear and is also the most frequently used commercial diving equipment. It is commonly referred to as an aqualung and involves the scuba diver breathing in from the equipment and exhaling out into the surrounding water. On the other hand, the closed circuit equipment, more commonly known as a re-breather. In a re-breather system, air is inhaled through the equipment and then blown out back into the equipment, where it is processed in order that it can be used again.
For extended dives, closed-circuit commercial diving equipment is recommended because longer durations can be achieved with a comparable weight. For instance a standard sized re-breather tank with a decent soda lime scrubber to filter the air can allow dives of four to five hours. On the other hand, open-circuit commercial diving equipment will allow a diver to stay underwater for only about an hour or less, making it ideal for sport diving but little else.
Other types of commercial diving equipment have nothing to do with either open-circuit or closed-circuit. A snorkel, for instance, is a very low tech form of underwater breathing apparatus, which basically comprises of a short tube that enables shallow divers to keep their mouth and nose submerged underwater while still breathing air from the surface. A surface supplied commercial diving equipment is similar to a snorkel, with the exception of a much longer tube, pumping water down deep in order to sustain the diver. Initially, this was used by professional divers but nowadays, it is often used as scuba equipment to depths of only 20 to 30 feet for tourists.
Other pieces of commercial diving equipment include fins, which allows a diver to swim faster. Commercial diving equipment also includes protective equipment to guard the body in the form of a wetsuit. Buoyancy compensator and electric diver propulsion vehicles help a diver move more swiftly and further through water. Divers may also wear commercial diving equipment such as diving masks.
Unlike scuba diving, free diving provides an underwater experience without the heavy scuba equipment. Freediving, also called apnea diving, is diving without a breathing apparatus. In order to free dive, you need nothing more than a swimming costume and the ability to hold your breath underwater. Nevertheless, serious free divers usually dive with some important free diving gear. Free diving gear is designed and intended to maximize your diving efficiency underwater and you also should take some safety free diving gear along with you every time you free dive. In the following paragraphs, we will talk about the different types of free diving gear.
Wetsuits or ‘skins’ as they are often referred to as are free diving gear that keep a scuba diver’s body warm during long periods in the ocean. Even though you are diving in a tropical and hot location, this free diving gear will protect you and prevents any cuts from corals or when climbing back into the boat. Wetsuits with short sleeves and legs are known as ‘shorties’. Full length suits are used in cooler waters. Most wetsuits used as free diving gear are made of neoprene rubber, The thickness of a wetsuit establishes its capability to insulate. Free divers might use thinner wetsuits as compared to scuba divers in order to facilitate movement below the surface
Fins or flippers are free diving gear that is much more flexible and longer than the average scuba fins. Free divers usually make use of fins that are about 35 to 43 inches in length. One style of fins is the monofin, it is joined at the feet, which looks a lot like the long, powerful tail of a dolphin or a whale. Divers swim through the water by kicking their legs together at the same time. The best free diving gear provides maximum forward movement from the smallest possible kicking motion. This allows the diver to spend more time under the water seeing as less oxygen is used for swimming.
Face masks frequently used for scuba diving are not suitable as free diving gear. In its place, free divers make use of specialized face masks as free diving gear with smaller air pockets. As with scuba masks, the lens is toughened and unbreakable in order to deal with the pressure of deep dives.