The Advantages of Diving a Rebreather

Deciding whether or not to use a rebreather is an important decision for any diver. There are a number of factors to consider, but one of the most important is the advantages that rebreathers offer. In this blog post, we'll take a look at five of the biggest advantages of diving a rebreather so that you can make an informed decision about whether or not they're right for you.


1. Lower Gas Consumption

One of the most significant advantages of diving a rebreather is that they consume less gas than traditional SCUBA gear. This is because a rebreather recycles the gas that you breathe, which means you don't have to rely on tanks of compressed gas as your sole source of breathable gas. This can be a major advantage if you're diving in an area where fills are scarce, or gas fills are expensive, or if you're trying to extend your dive time.

 

2. Reduced Heat Loss

Another advantage of diving rebreathers is that they reduce heat loss. This is because the exhaled air from traditional SCUBA gear is released into the water, which can cause your body temperature to drop quickly. By recycling your exhaled gas, rebreathers prevent this heat loss, which helps you stay warm and comfortable during your dive.

 

3. Optimized Decompression Profiles

Rebreathers also offer optimized decompression profiles, which means they can help you avoid decompression sickness (DCS). Decompression sickness occurs when nitrogen bubbles form in your body tissues and blood vessels due to changes in pressure. These bubbles can cause pain, disability, and even death if they're not treated promptly. By using a rebreather, you can minimize your risk of DCS by diving a constant, ideal partial pressure of oxygen.

 

4. Reduced Fluid Loss

Another advantage of dive rebreathers is that they reduce fluid loss. When diving open circuit, the inhaled gas is decompressed and cools down and has to be dry in order to not cause any free-flowing regulator due to freezing. Our lungs have to warm up the gas, more or less to our core temperature. A rebreather does not exchange gas with every breath and in addition, the chemical reaction in the scrubber heats up the gas with every cycle and reduces the heat loss of your body in cold water even further. In addition, the gas in the loop stays humid and reduces dehydration.

 

5. Silent Operation

Finally, a rebreather offers silent operation, which can be a major advantage if you're trying to avoid scaring away marine life or disturbing other divers nearby. Because traditional SCUBA gear releases bubbles into the water when you exhale, it can be quite loud underwater. Rebreathers don't release bubbles, so they operate silently, which helps you stay stealthy and avoid disturbing delicate ecosystems, ideal for underwater photographers.


Rebreathers offer a number of advantages for divers, including lower gas consumption, reduced heat loss, optimized decompression profiles, reduced fluid loss, and silent operation. When deciding whether or not to use a rebreather, weigh the pros and cons carefully to see if they're right for you and your diving needs.

The Advantages of Sidemount Diving

By Engage Team • October 14, 2022
When it comes to diving, sidemount is fast becoming the preferred method, especially for technical divers. Here are just a few of the advantages that sidemount has to offer. Redundant Gas Supply One of the biggest advantages of sidemount diving is the fact that it offers a redundant gas supply. This means that if one cylinder runs out of gas, you have a backup. This is vital for safety in diving, as it reduces the risk of an out-of-air situation. Ease of Managing Free-Flowing Regulators Another advantage of sidemount diving is that it is much easier to manage free-flowing regulators. This is because the regulators are not attached to your body, so you can easily reach them and stop the flow of gas. With traditional backmount systems, the regulators are often difficult to reach, which can be dangerous in an out-of-air situation. Reduced Weight Out of the Water Sidemount diving also has the advantage of reduced weight out of the water. This is because you are not carrying two tanks on your back, which can be very heavy. Sidemount diving also allows you to adjust your buoyancy more easily, which can be helpful when diving in different conditions. The ability to navigate bedding planes Sidemount diving gives you the ability to navigate bedding planes much more easily. This is because you have more freedom of movement and can contort your body into tighter spaces. This can be very helpful when exploring caves or wrecks. Less prone to catastrophic failures versus manifold doubles Another advantage of sidemount diving is that it is less prone to catastrophic failures than manifolded doubles. This is because each cylinder has its own regulator and there is no need for hoses or manifolds. If one regulator fails, you still have a backup. Sidemount diving has many advantages over traditional backmount diving, including redundant gas supply, ease of managing free-flowing regulators, reduced weight out of the water, and more. If you're looking for a safe and efficient way to dive, sidemount might be right for you.

How Cave Diving Can Improve Your Skills as a Diver

By Engage Team • October 14, 2022
Many divers find that cave diving presents a unique and exciting challenge. While it requires special training and equipment, cave diving can be an incredibly rewarding experience. In addition to the thrill of exploration, cave diving can also help you improve your skills as a diver. Here are just a few ways that cave diving can help you become a better diver. Improved Buoyancy Control One of the most important skills for any diver is buoyancy control. This is especially true in caves, where the slightest change in buoyancy can result in damage to the delicate cave environment. When you're cave diving, you need to be able to maintain precise control of your body position at all times. This requires practice and patience, but the end result is improved buoyancy control that you can take with you into other diving environments. Proper Body Positioning Another important skill that you'll learn while cave diving is proper body positioning. In order to navigate safely through narrow passages and around tight corners, you need to be able to position your body in just the right way. This can be tricky at first, but with practice, it will become second nature. And once you've mastered proper body positioning in caves, you'll find it much easier to execute in other types of dives as well. Confidence Underwater Cave diving requires a high level of confidence underwater. When you're swimming through dark caves with narrow passages, it's easy to let your imagination get the best of you. But if you can stay calm and focused, you'll find that cave diving is actually quite safe. The more experience you have cave diving, the more confidence you'll develop underwater—confidence that will come in handy in other diving situations as well. Gas Planning Skills In order to dive safely, it's important to have a good understanding of gas planning. This means knowing how much air you need for the dive, as well as how to share air efficiently with your dive buddy in case of an emergency. Cave diving gives you plenty of opportunities to practice gas planning, and as a result, you'll develop strong gas planning skills that can be applied to other types of dives as well.
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