ContentsQUICK ANSWER – THE BEST REBREATHERSREBREATHERS REVIEWSAP INSPIRATION EVP CCRREVO III CCRAP INSPIRATION EVO CCRPOSEIDON SE7EN (R) CCRHOLLIS EXPLORER SCRMEGALODON CCRJJ CCRKISS EXPLORER MCCRSENTINEL REDHEADCOMPARISON TABLE – THE BEST REBREATHERSHOW TO CHOOSE THE BEST REBREATHERSTHE TYPE OF DIVING YOU DOADVANTAGES OF A REBREATHERDISADVANTAGES OF A REBREATHERDO YOU UNDERSTAND REBREATHER DIVING?YOUR COMMITMENTTYPE OF REBREATHERECCR – ELECTRONIC CLOSED CIRCUIT REBREATHERSMCCR – MANUAL CLOSED CIRCUIT REBREATHERSSEMI-CLOSED CIRCUIT REBREATHERSSCRUBBER AND COUNTER LUNG DESIGNAXIALRADIALCOUNTER LUNGSWHAT OTHER FEATURES WOULD YOU LIKE? Rebreather diving has gained popularity over the last few years. As you can imagine, these high tech dive units are not cheap. As with any large investment, buying your first rebreather can be daunting. Before you make the big purchase, it’s crucial that you dive and test out a variety of different models. But where do you start? How do you know what’s the best rebreather for your style of diving? Though rebreathers all perform the same task: removing additional CO2 from the breathing loop while adding the necessary amount of oxygen or nitrox – The way different models execute this task varies. Remember, a rebreather is a huge investment, and thus it’s important that you take the time to find the right machine for you and your type of diving. One of our goals here at The Adventure Junkies is to make your life easier when it comes to gear shopping. In this guide, we’ll walk you through some things to consider before buying a rebreather and show you our selection of some of the best models out there. For more of our top scuba gear recommendations, check out these popular articles: BCDs | Regulators | Gauges | Masks | Fins | Dry Snorkels Wetsuits | Boots | Gloves | Drysuits Travel Bags | SMBs | Knives | Lights | Compasses Rebreathers | DPVs | Tanks | Watches | Computers Cameras | Housings | Lenses | Strobes LEARN HOW TO CHOOSE DIVING GEAR FOR YOUR NEXT UNDERWATER ADVENTUREJOIN THE FREE SCUBA GEAR COURSEJOIN THE FREE SCUBA GEAR COURSE QUICK ANSWER – THE BEST REBREATHERS Poseidon Se7En (R) Ccr Hollis Explorer Scr Ap Inspiration Evp Ccr Revo Iii Ccr Ap Inspiration Evo Ccr Magalodon Ccr Jj Ccr Kiss Explorer Mccr Sentinel Redhead Ccr DIVE TRAVELPACKING LISTDon't forget important gear at home!Print out this free dive gear packing list to prepare for your next adventure.UNLOCK THIS LIST REBREATHERS REVIEWS AP INSPIRATION EVP CCR Check out the latest price on: AP Diving BEST FOR: All dive profiles, a great all-rounder rebreather SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Over the shoulder PROS: Small enough to be convenient for travel CONS: Some people are not a fan of the big bulky yellow box design REVO III CCR Check out the latest price on: Revo Rebreathers BEST FOR: Good all around unit – but particularly good for cave diving due to slim design SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Back mount PROS: Unique scrubber system that is designed to cater for safety CONS: Metal case and frame need extra attention and care to keep well maintained AP INSPIRATION EVO CCR Check out the latest price on: AP Diving BEST FOR: Recreational diving and travel – better suited for smaller sized divers. SCRUBBER DURATION: 2 hours COUNTER LUNG LOCATION: Over the shoulder PROS: Compact light and easy to fly with – the perfect travel unit CONS: Not ideal for deep technical dives of long duration POSEIDON SE7EN (R) CCR Check out the latest price on: Amazon BEST FOR: Recreational diving SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Over the shoulder PROS: Exceptionally small, light and simple to use, can be upgraded for deep technical diving CONS: Very expensive to upgrade HOLLIS EXPLORER SCR Check out the latest price on: Amazon BEST FOR: Recreational diving SCRUBBER DURATION: 2 hours COUNTER LUNG LOCATION: Back mount PROS: Compact, lightweight and extremely easy to use CONS: Work of breathing a bit harder in the classic horizontal diver position MEGALODON CCR Check out the latest price on: Innerspace Systems Corp BEST FOR: Deep / long duration technical diving SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Over the shoulder PROS: Very sturdy rugged and reliable CCR and comes with two independent handsets CONS: Dives slightly butt heavy JJ CCR Check out the latest price on: JJ CCR BEST FOR: Technical diving SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Back mount PROS: Very nice and clean setup CONS: Quite large and heavy KISS EXPLORER MCCR Check out the latest price on: Kiss Rebreathers BEST FOR: Vigilant divers who want full control over the unit for added safety SCRUBBER DURATION: 2 hours COUNTER LUNG LOCATION: Back mounted PROS: Added safety of a manual CCR – but remember a vigilant rebreather diver = a safe rebreather diver CONS: Limited scrubber life and counter lungs not so sturdy to access SENTINEL REDHEAD Check out the latest price on: VMS Rebreathers BEST FOR: Great deep ocean exploration unit SCRUBBER DURATION: 3 hours COUNTER LUNG LOCATION: Over the shoulder PROS: Has a unique infrared CO2 detection system CONS: Heavy and hard to travel unit COMPARISON TABLE – THE BEST REBREATHERS PICTUREREBREATHERBEST USEPRICERATING PICTUREREBREATHERBEST USEPRICERATING POSEIDON SE7EN (R) CCRRecreational $$4.4 HOLLIS EXPLORER SCRRecreational $4.3 AP INSPIRATION EVP CCRTechnical $$4.5 REVO III CCR Technical $$4.4 AP INSPIRATION EVO CCR Technical $$4.5 MAGALODON CCRTechnical $$$5.0 JJ CCRTechnical $$$5.0 KISS EXPLORER MCCR Technical $4.5 SENTINEL REDHEAD CCR Technical $$4.0 PLAN & PREPARE FOR YOUR FIRST LIVEABOARD TRIPPLAN & PREPARE FOR YOUR FIRST LIVEABOARD TRIPThis free ebook will walk you through everything you need to know about liveaboard vacations...from how to choose a boat, to what to pack and more.UNLOCK THIS GUIDELET US HELP YOUGET YOUR SCUBA FIXFor more email-based advice and inspiration, select additional areas of interest below. GET STARTED DIVINGLIVEABOARD DIVINGDIVE TRAVEL DEALSDIVE DESTINATIONSGEAR UP FOR SCUBA UPDATE PROFILESKIP FOR NOW HOW TO CHOOSE THE BEST REBREATHERS THE TYPE OF DIVING YOU DO Rebreathers are ideal for divers who conduct long or deep technical dives using mixed gas. These machines are also ideal for underwater photographers and scientists who wish to stay shallow for long periods of time. There are many advantages of diving with a rebreather, but there are also many disadvantages. ADVANTAGES OF A REBREATHER Gas and deco efficiency (especially with expensive helium!) Longer bottom and dive times Silent DISADVANTAGES OF A REBREATHER Expense Exceptional understanding of the machine and discipline is crucial Complex A rebreather should be viewed as a ‘mission specific item.’ Your field of diving should be able to exploit all the merits and benefits of this piece of technology. Considering the exceptional cost, maintenance, and life risk that the machine imposes, you’ll need to consider whether a rebreather is ideal for your type of diving. If you are just learning to dive or can complete your dive goal and mission on a single tank of air, then maybe a rebreather is not the right piece of equipment for you. Typically, rebreathers are not the ideal choice for general recreational / sport diving. Rebreathers also come in different designs, and some designs are more suited for certain types of diving. For example, if you are doing lots of wreck penetration dives or tight cave dives then you’ll want a slim designed machine instead of a larger bulky one. DO YOU UNDERSTAND REBREATHER DIVING? Rebreathers are a complicated piece of technology. You need to have an in-depth knowledge of how this machine works. Rebreather diving also requires good understanding of diving physics and physiology. Understanding how your machine works and how it affects your dive profile and body while diving is crucial. You’ll have to complete a four / five-day training course before you are legally able to purchase a machine. This course is only the first step, and you should be prepared for continual learning. There is always room for skill improvement and better understanding of the physics and physiology of rebreather diving. YOUR COMMITMENT Owning a rebreather is like being in a marriage. There is no way around it; a rebreather needs proper care and commitment. Failing to do so, you risk equipment malfunction which often leads to death. Constant maintenance, pre-dive and post-dive checks and regular skill enhancing are all part of owning a rebreather. All these things will take up more of your time than diving with it underwater. A perfectionist mindset is ideal. You’ll constantly need to check things over and over again. If you are the ‘lazy diver type’ who enjoys taking naps between dives and kitting up as late as possible, then rebreather diving is not for you. TYPE OF REBREATHER There are lots of different types and models of rebreathers available today. The most common is the closed circuit rebreather (CCR). You have the option of purchasing either an eCCR or an mCCR. The main difference between the two is the way oxygen is inserted into the breathing loop. ECCR – ELECTRONIC CLOSED CIRCUIT REBREATHERS Electronic Closed Circuit Rebreathers use a computer to constantly measure the amount of oxygen in your breathing loop and automatically maintain the PPO2 set point. MCCR – MANUAL CLOSED CIRCUIT REBREATHERS Manual Closed Circuit Rebreathers require the diver to constantly check the PPO2 level in the breathing loop and manually inject more oxygen when necessary to keep the oxygen content at the correct level. These machines are cheaper and simpler than eCCR’s but require a whole new level of diver diligence. SEMI-CLOSED CIRCUIT REBREATHERS Semi-Closed Circuit Rebreathers are also available. These machines lose gas with every exhalation. They also keep a constant percentage of oxygen, unlike fully closed units. This is not ideal for decompression dives and is better suited for recreational depths. SCRUBBER AND COUNTER LUNG DESIGN One of the main life-saving components of a rebreather is the scrubber canister. This canister is composed of a chemical that is responsible for extracting the extra CO2 in your breathing loop. Scrubbers come in different sizes and designs which all affect its duration. AXIAL A cylindrical shaped pipe where the gas can pass in a vertical direction. RADIAL In a radial-shaped scrubber, the gas passes in a radial direction from the middle of the canister towards the outer sides. The radial design is known to have a longer duration. COUNTER LUNGS The counter lungs on a rebreather are the bag like features on the breathing loop. These bags can either be over the shoulder or back mounted. With back mounted counter lungs, the chest area is clutter free. This location of the counter lungs makes exhalation easier but inhalation harder. Over the shoulder mounted counter lungs are designed to be placed as close to your real lungs as possible. This position has a better work of breathing than back mounted counter lungs, but the chest is cluttered. Counter lungs also come in a variety of sizes so you will need to figure out which size suits you best. WHAT OTHER FEATURES WOULD YOU LIKE? What kind of electronics do you want on your rebreather? What design do you prefer for you Bail-Out valve? Would you prefer a machine with a head-up display and audible alarms? Scrubber and counter lung design and placement are only one of many design variations on a rebreather. There are a variety of other different features that you will need to look into and research upon when buying a rebreather. SCUBA DIVING RESOURCESTABLE OF CONTENTSSCUBA DIVINGTABLE OF CONTENTS 1. BASICS 5. SCUBA EQUIPMENT 2. DIVING COURSES 6. UW PHOTOGRAPHY 3. SPECIALTY DIVING 7. LIVEABOARD DIVING 4. DIVE SAFETY 8. DIVING DESTINATIONS 1. BASICS 2. DIVING COURSES 3. SPECIALTY DIVING 4. DIVE SAFETY 5. SCUBA EQUIPMENT 6. UW PHOTOGRAPHY 7. LIVEABOARD DIVING 8. DIVING DESTINATIONS Disclosure: The Adventure Junkies is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This means if you click on the link and purchase the item, we will receive an affiliate commission at no extra cost for you. We also use other affiliate programs like REI, LeisurePro, Diviac and Liveaboard.com.