If You Think That Scuba Diving Is All About Attachingan Oxygen Tank In Your Back And Breathing Through Itwith The Use Of A Regulator, Then You Are Wrong.There's A Lot More To Scuba Diving Than That. In Fact,pure Oxygen Is Never Used In Scuba Diving, Especiallyon Deep Sea Diving.In Recreational Diving, Air Is Commonly Used And Notpure Oxygen As Most People Assume. Air Is Basicallycomposed Of 70 Percent Nitrogen And 30 Percent Oxygen.However, Nitrox Mixes Are Now Being Used A Lot More Inrecreational Diving As It Decreases The Chances Ofnitrogen Sickness.Although Nitrox Is Still Composed Of Nitrogen Andoxygen, The Oxygen Concentration Is A Lot Higher Thanair. This Will Reduce The Risk Of Nitrogen Sickness Orbends, But It Trades Off Depth. The More Oxygen Thereis In Your Scuba Diving Tank, The Shallower You Areallowed To Dive.So, Just Why Is Pure Oxygen Not Used In Deep Seadiving? This Is Because Of Oxygen Toxicity. As You Godeeper Underwater, The Pressure Increases And Oxygentoxicity Becomes A Factor. So, By Reducing Oxygen Inthe Air You Breathe, You Will Be Able To Go Deeper.However, By Doing So, You Will Also Increase Theamount Of Nitrogen In The Air You Are Breathing Whichcan Result In Nitrogen Narcosis When You Go Deeper Aswell As Nitrogen Sickness Or The Bends.You May Wonder How Deep Sea Divers Go Deep Underwater.The Answer To This Question Is Trimix. Trimix Is Aspecial Air Mix Designed For Deep Sea Diving. Trimixis Composed Of Oxygen, Nitrogen And Helium Hence Theterm Trimix.Helium Is Used Because It Reduces The Proportions Ofnitrogen And Oxygen. This Means That Because Theoxygen Is Reduced, It Will Enable The Diver To Divedeeper. And, Because Nitrogen Is Reduced, The Diverwill Not Experience Nitrogen Sickness Or Nitrogennarcosis.The Great Thing About Helium Is That It Can Bebreathable Under Pressure And It Has Very Littlenarcotic Effect. Because Of Helium's Low Density, Itreduces Breathing Resistance At Depth Or At Pressure.Also, Helium Does Not Enter Slow Tissues As Readily Asnitrogen, Which Causes The Bends.The Only Disadvantage Of Helium Is That It Conductsheat 5 Times Faster. Also, During Descent, Deep Seadivers Suffer From A Condition Called Hyperbaricarthralgia.If You Become A Deep Sea Diver, You Will Learn Aboutthe Different Variations Of Trimix. Some Will Be Namedtrimix 1070 And Etc. If You Come Across With Trimix1070, It Will Mean That The Gas Inside The Scubadiving Tank Will Be Composed Of 10 Percent Oxygen, 70percent Helium And 20 Percent Nitrogen. This Kind Ofmix Is Suitable For Dives Up To A Hundred Meters Or330 Feet.These Are The Things That You Have To Remember Abouttrimix. As You Can See, Deep Sea Diving Is Not Assimple As It May Seem. There Are So Many Aspects Indeep Sea Diving That You Have To Be Aware Of And Oneof Them Is The Gas Used For Breathing.So, Before You Don Your Scuba Diving Gears And Youplan On Going Very Deep, Keep In Mind That Deep Seadiving Is A Specialty Course That One Needs To Takebefore They Undertake Dives Like This. Deep Sea Divingis Different From Recreational Diving. It Takes Yearsof Training And A Lot Of Discipline.
