SCUBA

S.C.U.B.A. (Self Contained Underwater Breathing Apparatus)

bocaUnder the term scuba diving we refer to diving with a personal canister of compressed air and accompanying equipment (air bottle with a valve outlet, air regulator, buoyancy compensator, diving mask, fins, lead and either a wet suit or a dry diving suit). Another peace of equipment which is quite handy to have while diving is a diving computer with depth measurements and decompression calculator. Another way to calculate decompression schedule is with the help of decompression tables.
SCUBA diving is characteristic since it allows for longer underwater time, but also for its unique risks which accompany it. There are certain rules which must be observed each time you go on a dive with an autonomous diving apparatus. All dives have to be planned, including planned time schedule from descent, time spent on the desired depth, and ascending to the surface with decompression stops included. If a diver does not follow the decompression rules serious health issues may occur and can result in decompression illness. When spending longer periods of time deep underwater a large amount of nitrogen dissolves in your body, and this nitrogen can rapidly expand if we ascend too quickly resulting in serious injuries. For dives less than 12 meters in depth decompression is not needed, but still a safety curve has to be observed which means that the maximum speed of your ascend should not exceed 12 meters per minute. Because of all of these dangers which could strike at an inexperienced and unprepared scuba diver a depth limit has been introduced according to the class of the diver. Divers with one star (*) class can dive to the maximum depth of up to 20 meters in a buddy system; two star (**) divers can descend to maximum depth of 30 meters; divers with *** may go below 40 meters of depth. Diving below the 40 meter limit is not advised, although the experienced divers go much deeper than that. For depths exceeding 60 meters a special gas mixture is used because of the large partial pressure of oxygen in compressed air. Diving to extreme depths using ordinary compressed air could result in oxygen poisoning.

Additional reading on this topic can be found at this link:

Under the term scuba diving we refer to diving with a personal canister of compressed air and accompanying equipment (air bottle with a valve outlet, air regulator, buoyancy compensator, diving mask, fins, lead and either a wet suit or a dry diving suit). Another peace of equipment which is quite handy to have while diving is a diving computer with depth measurements and decompression calculator. Another way to calculate decompression schedule is with the help of decompression tables.

SCUBA diving is characteristic since it allows for longer underwater time, but also for its unique risks which accompany it. There are certain rules which must be observed each time you go on a dive with an autonomous diving apparatus. All dives have to be planned, including planned time schedule from descent, time spent on the desired depth, and ascending to the surface with decompression stops included. If a diver does not follow the decompression rules serious health issues may occur and can result in decompression illness. When spending longer periods of time deep underwater a large amount of nitrogen dissolves in your body, and this nitrogen can rapidly expand if we ascend too quickly resulting in serious injuries. For dives less than 12 meters in depth decompression is not needed, but still a safety curve has to be observed which means that the maximum speed of your ascend should not exceed 12 meters per minute. Because of all of these dangers which could strike at an inexperienced and unprepared scuba diver a depth limit has been introduced according to the class of the diver. Divers with one star (*) class can dive to the maximum depth of up to 20 meters in a buddy system; two star (**) divers can descend to maximum depth of 30 meters; divers with *** may go below 40 meters of depth. Diving below the 40 meter limit is not advised, although the experienced divers go much deeper than that. For depths exceeding 60 meters a special gas mixture is used because of the large partial pressure of oxygen in compressed air. Diving to extreme depths using ordinary compressed air could result in oxygen poisoning.        

Additional reading on this topic can be found at this link: