The technology of today’s world is beyond our imagination. It started out in the 19th century and it is getting developed at a rapid rate day by day. New technologies have allowed us to make mind-blowing discoveries about our earth, allowing us to explore hostile regions such as under the depths of the sea. Scuba diving has allowed us a glimpse of a whole new world under the water.
In order to make scuba diving possible, divers use a breathing apparatus called a scuba or a rebreather to allow them to breathe under the water. Everyone knows that oxygen is life. Without it, man would not be able to exist. We may think that oxygen is everywhere, but there are certain areas such as under the water where oxygen may not be present. Without technology, we would
not be able to explore there.
Rebreathers were first used for military purposes to attack in stealth mode. They were designed and made by an English engineer named Henry Fluess in 1878. The first rebreather was made of rubber masks and breathing bags with 50-60% O2 supplied from a copper tank and CO2 scrubbed by rope yarn soaked in a solution of caustic potash.
Today, rebreathers are being used in many applications and are one of the most important inventions. But this does not mean that they have only advantages and no disadvantages. Rebreathers also have major drawbacks that reduce their usage around the world. Click here to find the best rebreather in the market.
Rebreathers and Scuba Diving
Scuba diving is one of the most interesting, entertaining and also most dangerous sports. Using a rebreather is must for scuba divers because there is no presence of oxygen under the sea. A closed circuit rebreather is generally the preferred choice, as it has many advantages over an open circuit rebreather.
In this process, the diver first puts the mouthpiece of the rebreather into his mouth. The principle of how it works is simple. The rebreather consists of two tubes: one tube is to take out the carbon dioxide, which we exhale and the other tube is to generate oxygen, which we inhale. The closed system consists of a counter lung, a flexible bag that expands according to the rhythm of our
breathing. The counter lung on the exhalation side contains a valve that is used to vent the carbon dioxide out of the system. The other valve on the inhalation side is used to take in more nitrogen or oxygen.
A cylinder valve is also present, which controls the entire operation. When it is switched on, it starts gas flows into the breathing loop that is determined by the valve.
It’s fairly easy to understand scuba diving and how the rebreather apparatus works. But the most important thing is to have a safe attitude towards scuba diving. It is not all about the rebreather we are using. We have to consider some of our behaviors while diving. There are also some factors to be considered before diving, while diving and also after diving.
The checking of valves, internal components, and fuel is the first thing to be done before using a rebreather. Frequent cleaning, servicing, and maintenance is also required. While diving, rebreather operating must be done in a clean and careful way. Each and every problem must be taken care of before diving. Filling the scrubber canister and assembling the breathing loop before the dive involve steps that must be followed precisely and tests that can’t be skipped.
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Thus scuba diving is a very dangerous sport and must be undertaken in a serious way. It is not something that is to be played with. Rebreathers are the most important equipment needed for scuba diving, but they do have certain advantages and disadvantages.
- The biggest advantage of all is the gas efficiency of rebreathers. A little amount of gas can make them usable for nearly six hours, depending upon the rebreather.
- Their silence is also a major advantage. It does not produce any bubbles inside sea, which avoids the problem of disturbing the fish and sea life.
- They give you moist and humidified gas, which keeps you warm.
- Some rebreathers monitor the partial pressure of oxygen. It remains constant independent of the pressure under the sea.
- A rebreather failure can go unnoticed. That is, you may not be able to detect the problem in any valves while diving. Due to this, carbon dioxide content may increase and oxygen content may decrease. This can cause various problems.
- A rebreather failure can cause death or serious injuries.
- The cost of it is very high.
- It is naturally bulky in nature.
- The diver who uses a rebreather must have good experience in both scuba diving and rebreathers.
Thus, we must understand that rebreathers are very dangerous when used in scuba diving. Precautions must be taken before deciding to try scuba diving. Those simple precautions may also save your life. Buy your rebreathers from a good company and enjoy a safe life.
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