| Scuba diving is considered a fun sport these days. It | | | | a profession. Divers take is as a profession as many |
| is an underwater diving which is done by using a | | | | companies who deal with things like oil exploration, |
| diving equipment (helps to breathe under water) for | | | | offshore construction and underwater welding |
| commercial or recreational purpose. In early times, a | | | | employ scuba divers. Diving can be military diving or |
| diver used to go on with the help of air through the | | | | scientific diving as well. |
| surface but these days, one uses swimfins, which | | | | Breathing high pressure gas can cause decompression |
| along with the surface air help them to sustain for | | | | sickness, nitrogen narcosis and oxygen toxicity but |
| longer period underwater. | | | | these things can be well avoided by taking following |
| The first used scuba set was known as Aqualung | | | | proper steps and procedures under water. Certain |
| which was developed by Emile Gagnan and | | | | things you need to take care when underwater are |
| Jacques-Yves Cousteau. These are the most widely | | | | refraction and your vision underwater, buoyancy |
| and popularly used scuba units till date. In this unit, air | | | | should be controlled underwater, avoid losing heat |
| is inhaled from the tank and released in water. | | | | from the body, avoid skin cuts, diving properly and |
| Later on, rebreather system came in to picture which | | | | safely and being mobile and fast underwater. |
| is the second best after Aqualung. This unit | | | | Recreational scuba diving does not usually have any |
| reprocesses the exhaled air so that carbon dioxide | | | | certifying agency but there are several diving |
| can be removed. | | | | organizations that certify and train scuba divers. This |
| The types of scuba diving are broadly categorized | | | | is just so because there are many rental and sales |
| into personal and professional. People start | | | | outlets that ask for diver certification before renting |
| recreational diving but can move on to take it up as | | | | or selling diving products. |