Top 8 Best Rebreather For Scuba Diving

Buying Guide & Advice

 Image Brand  Best For Counter Lung Location Scrubber Duration  Price
Best Scuba Rebreather AP Inspiration EVP CCR Professional and Recreational Diving Over  The Shoulder 3 Hours $$
Best Scuba Rebreather rEvo III CCR  Professional Diving ( Good For Wreck and Cave Diving) Back M0unt 3 Hours $$
Best Scuba Rebreather Hollis Prism 2 Tek Technical Diving Strapped Over The Shoulder 4 Hours $$
Best Scuba Rebreather Poseidon Se7en (R) CCR  Recreational Diving Strapped Over The Shoulder 3 Hours


Best Scuba Rebreather Megalodon CCR Deep And Long Duration Technical Diving Strapped Over The Shoulder 3 Hours $$
Best Scuba Rebreather Kiss Explorer MCCR Vigilant divers who want full control over the unit for added safety Back Mounted 2 Hours $$
Best Scuba Rebreather Sentinel Redhead Great deep ocean exploration unit Strapped Over The Shoulder 3 Hours $$
JJ CCR Rebreather Technical Diving Back Mounted 3 Hours $$

Top 8 Best Rebreather – Review and Buyers’ Guide

A scuba rebreather is a diving device that recycles the gas that divers exhale through the method of taking aside the reusable gas and renewing it to be taken in again by the diver. Apparently, this device gives divers who use it a bigger advantage of delving deeper and staying longer underwater than those who do not. The best scuba rebreather, therefore, is an extra-powerful scuba diving gear that gives you a closer and more robust exposure to the aquatic life.

A scuba rebreather is a very expensive diving equipment and as such should not be hurriedly bought. It is best for divers who will like to explore the life of the aquatic world at a good and close-up level. Given the fact that it allows divers to dive deeper, many people ask how long one can dive on a rebreather? With a compact-sized cylinder filled with gas, a diver can stay as long as six hours at the bottom of the ocean, although the type of rebreather in use is a consideration too.  There are many myths today about the rebreather which gives it a rather distant understanding among some divers. There are many benefits attached to using a scuba rebreather. However, one needs to really understand the pros and cons and get to familiarize with it before launching into the deep.

In this review article, we will guide you through knowing and understanding all that is needed to get acquainted with the rebreather. More so, we will expose you to a list of the best scuba rebreather around.

Model Characteristics Of A Rebreather

Getting to know your scuba rebreather means that you have a good knowledge of the standard features it delivers. This will put you in the best position to make a guided judgment when it comes to purchasing or enlightening others about how a good scuba rebreather functions.


The counterlung is a standard part of the scuba rebreather gear that is designed to expand and contract as the diver breathes. This allows the total volume of gas that is in the lungs to remain constant throughout the breathing cycle.


A valve in scuba rebreather is used to direct the gas and let it pass through a scrubber that takes out the CO2 and makes the other gas breathable.


This is a device that is connected to rebreather through a hose and allows divers to get backup gas in case of emergencies.

Gas Supply 

Your gas supply is the feed that goes through the loop to renew the oxygen in your tank.

Factors To Consider When Looking For The Best Rebreather

Type Of Rebreather

The list of rebreather types available today is much, just as much as the models we have around. You cannot judge which is good for you just by looking at it or by ‘liking’ the design. A diver needs to know what function and feature each serves so as to make the best choice. However, the most popular thus far are the closed circuit rebreather. Let’s get to meet the types available.

 ECCR – Electronic Closed Circuit Rebreathers

The electronically closed circuit scuba rebreather is a device that makes use of an electronic computer to determine the amount of oxygen that is released into your hose for breathing.  The benefit of this scuba rebreather being computerized is that it can correct itself if the gas flow is compromised and it fails to deliver the correct flow. To correct this, it will trigger the control circuit which will compensate by firing the solenoid valve more often.

MCCR – Manual Closed Circuit Rebreathers

Given the name, this rebreather type requires constant check and adjustment by the diver, so users are supposed to be very vigilant to run checks periodically. What the diver does is to check the level of PPO2 that is contained in the breathing periodically, and they have to inject oxygen by hand when it is needed.

If you fancy an affordable scuba rebreather, the MCCR is the best option for you. However, it requires that you pay a good level of attention to it so as not to warrant any complications.

Semi-Closed Circuit Rebreather

The semi-closed rebreather is a type that triggers a shorter gas release when there is a failure of any kind. By this, the diver gets an early nudge that there is something wrong so they can promptly attend to it or seek a correction. It also keeps a constant level of oxygen that divers can fall back on if any need for such rises.

Diving Type

It is important that you understand your dive type and to reach the decision whether you require a rebreather or not. Scuba rebreathers are best for deep water diving and for occasions where you need to stay long underwater whether to take snapshots or do some observations.

To get the best out of your dive time, you need to define your dive need and choose the best scuba rebreather type that fits your need.

Best Pick/Choice Scuba Rebreather Brand Review

  1. AP Inspiration EVP CCR

Best Scuba Rebreather

Best For:  Professional and Recreational Diving

Counter Lung Location: Over The Shoulder

Scrubber Duration: 3 Hours

The Inspiration Rebreather started is a larger unit of diving rebreather when compared to other brands that are available on the market today. It promises a longer duration underwater and has a 3 liters cylinders. This makes it a good choice for deeper, longer diving duration and for any kind of scuba diving at that. Divers who perform shorter but repetitive dives can also find it as a good choice because it will suffice for all the cumulative time spent underwater.

The counterlung is positioned can be placed over the shoulder for a closer-to-the lung feel that makes it best for uninhibited efficiency or just mounted on the back where it is more convenient. Whatever position you opt for should be decided based on how comfortably you can carry it without any hindrances.

AP Inspiration EVP CCR comes with a content list of cylinders, hoses, first stages and case parts, contents gauges, audible alarm and manual inflators, integrated weight harness with thru-the-leg straps, 16kg buoyancy control wing with auto air  – OC bailout valve, PC download & Logviewer software

All AP rebreathers are ready-to-dive with the above standard features, but you can go further and spec your own unit – with multiple options and upgrades – to suit your personal preference and dive goals.

  1. rEvo III CCR

Best Scuba Rebreather

Best For: Professional Diving (Good for Wreck and Cave Diving)

Counter Lung Location: Back Mount

Scrubber Duration: 3 Hours

The rEvo III CCR is a designed to be operated based on the CMF principle: (constant mass flow). This means that a consistent outflow of oxygen is released into the breathing loop of the scuba rebreather. The flow rate is high enough to provide a diver in rest with a life-sustaining breathable oxygen flow.

It also allows the flow rate to be adjusted based on the perceived need of the diver. But at any time, the flow is kept small enough to be safely used by the diver. The diver assumes control and monitoring of the PPO2 and is constantly notified of the status through the LED indication of the HUD and their handsets.

As have been outlined earlier, the diver can always manually add oxygen through the oxygen addition valve to maintain the desired PPO2 level at all time. This gear is a very easy rebreather to setup, use and maintain because the diver is given access to all the parts of the gear.

  1. Hollis Prism 2 Tek

Best Scuba Rebreather

Best For: Technical Diving

Counter Lung Location: Strapped Over The Shoulder

Scrubber Duration: 4 Hours

Prism 2 Tek from Hollis is an electronic Closed-Circuit scuba diving rebreather and is a very good option for divers who want to delve deep into the underwater world. Designed with good grade technology, the Prism 2 Tek delivers a comfortably warm breathing gas in an optimal breathing mix at any depth. This extends no-decompression times; allowing divers to take advantage of it more efficient gas use.

Just so you get a good uninhibited management of the kit, the Prism stores it 9V alkaline battery outside the breathing loop, so it does not pose any hindrance to the diver’s free movement while diving. Boasting of some 40 hours use time in 70F water temperature; it can well be said to be among the best optimally timed the durable battery in the rebreather list.

Every scuba diver who wants to get involved in a long technical dive research should consider this as a good choice because of the very easy to use nature of the rebreather.

  1. Poseidon Se7en (R) CCR

Best Scuba Rebreather

Best For: Recreational Diving

Counter Lung Location: Strapped Over The Shoulder

Scrubber Duration: 3 Hours

Although designed for recreational diving the Poseidon Se7en is a well graded completely sophisticated scuba diving rebreather that every diver will find amusing as well as efficiently good. It is built and tested to perform exceptionally well in all recreational diving and pseudo-technical diving conditions, the Poseidon Se7en is a world class scuba rebreather that is made available for every diver who desires the best from their scuba rebreather.

If you are daring enough to plunge into the deep and observe the marine life closely without bubble disturbance or noise, then a good option of scuba diving rebreather is the Poseidon Se7en. Safety, performance, ease of use and desirability are features that are combined to enable divers who opt for the Se7en to enjoy the abilities to experience the underwater world without compromise.

It provides divers with the luxury of a Generation 7 electronics which opens the diver to a world of endless possibilities for interaction, accessories, and apps all to give scuba divers the best diving experience. It also has a fully functional Bluetooth connection that allows you to conveniently download your dive logs in seconds, update your settings and interact effortlessly with the kit.

Given the awesome simplicity in design and ease of use it brings to rebreather use, all divers who love to get involved in recreational scuba diving will find it a good buy.

  1. Megalodon CCR

Best Scuba Rebreather

Best For: Deep and Long Duration Technical Diving

Counter Lung Location: Strapped Over The Shoulder

Scrubber Duration: 3 Hours

Megalodon CCR’s reputation precedes it as one of the best reliable rebreathers that have been proven to have the ability to withstand extreme use and weather. It comes with two sets of independent handsets, and it also has an independent battery pack. Scuba divers who deem it fit can decide to upgrade the kit if they choose to. It also has an analog electronics that makes it one of the most reliable electronic rebreather in the industry

The Meg may be integrated with several types of electronic systems, scrubber sizes and types, gas supply cylinders, harness and BC assemblies. There are 21 versions of the Meg to support customer needs. The Meg is being used as a side mounted system for penetration into extreme enclosed spaces and doubled up as a twin system for CCR redundancy for extreme deep diving operations where carrying open circuit bailout is impractical. The ISC Megalodon CCR or more fondly called “The Meg” is a CCR system that has been embraced by divers of all skill levels around the world. Meg divers dive from 60fsw to over 742fsw / 225msw. With its versatility of design, it can be configured to meet any level of diving and keep pace with the “Meg divers” skill levels.

Fundamentally the Meg was designed for the most demanding dives with consideration for the diver and their needs. Addressing not only the necessary requirements of performance that a true 3rd party tested CCR must undergo but also the other factors that are not considered, such as travel concerns and conducting repairs in remote locations.

  1. Kiss Explorer MCCR

Best Scuba Rebreather

Best For: Vigilant divers who want full control over the unit for added safety

Counter Lung Location: Back Mounted

Scrubber Duration: 2 Hours

For a long time now, the KISS Explorer has earned for itself a reputation as a very good and exceptionally durable, reliable and easiest to maintain closed circuit rebreather on the market. This reputation has been duly confirmed by all kinds of scuba divers in different water conditions. Due to its capacity to withstand usage in very harsh, and extremely remote locations – which have included some of the deepest cave systems in the world – it conveniently passes as a truly expedition-grade rebreather.

Designed with an advanced yet simple and straightforward configuration, the Explorer rebreather’s head and scrubber are centrally positioned on the diver’s back and flanked by the unit’s oxygen and diluent supply on either side. This layout follows that of the majority of rebreathers built today. The most outward differences between the KISS system and other non-military rebreathers of the era was that the Classic’s two counter-lungs were back mounted instead of being mounted over the shoulder.

  1. Sentinel Redhead

Best Scuba Rebreather

Best For: Great Deep Ocean Exploration Unit

Counter Lung Location: Strapped Over The Shoulder

Scrubber Duration: 3 Hours

This high-grade scuba rebreather has been tested and affirmed to be more flood resistance and has a better PPO2 tracking ability than what is available on the market now. It also has does a better work of breathing and has a new O2 sensor module that works amazingly well. They respond to changes in resource level and reduce the effort required to monitor PPO2, CO2, battery, scrubber time remaining (dynamically, thus warning of floods, poor material, etc.), HP O2 and HP Dil.

In contrast to traditional rebreather design, the Sentinel RedHead rebreather features a single back mounted counterlung.  This means that divers are presented with a clear chest for stages, cameras or just squeezing through tight gaps.  Both a diver (with vibrating alarm) and buddy HUD means everyone is aware of the state of your rebreather, an excellent feature when team diving.  An independent backup display provides an alternative source for monitoring PO2 in the loop, making a full bailout scenario even less likely.

The Sentinel RedHead also features a fully functioning gaseous CO2 sensor.  This gives a constant reading on the amount of CO2 present within the breathing loop and is a breakthrough in rebreather safety and technology.

A modular plug and play cable system mean most components on the Sentinel RedHead such as handsets and HP senders can be changed on the boat or shore in a matter of seconds.

  1. JJ CCR Rebreather

Best For: Technical Diving

Counter Lung Location: Back Mounted

Scrubber Duration: 3 Hours

The JJ comes with a Shearwater Petrel as a primary handset. Although there is no backup handset, the new HUD acts as a backup and is also a virtual standalone which has its own independent battery supply and processor. The JJ CCR is a relatively large and heavy gear to adorn mainly because of the stainless steel handle and stand. However, it is a very efficient scuba rebreather that guarantees one of the best experience. It has the hose neatly tucked away behind the wing and counterlungs.

JJ also has a stand from the factory, which makes it stand vertically up. Together with the handle, it makes for a very handy unit. JJ has a shearwater with integrated computer. This makes it very sophisticated and a good choice of scuba rebreather for diving.