
You should carefully read the specifications before buying a rebreather. Don't trust everything you read on the internet. The rebreather is not guaranteed to be safe just because a diver has survived 400 feet in water. Instead, seek hard evidence like CE test data.
TDI Generic - CCR Diver
TDI Generic CCR Diver training is a great option for those interested in rebreathing under a pressure chamber. This type of rebreathing equipment helps divers extend their bottom times and depths. This course is perfect for divers who wish to upgrade their equipment.
Basic techniques and theory are covered in the CCR Diver Training Manual. The course takes around five days and covers how to properly decompress using a standard CCR. Upon successful completion of the training, the diver is certified and is eligible to cross over to a different CCR rebreather.
POSEIDON SE7EN recreational rebreather
The POSEIDONSE7EN recreational rebreather features upgraded internal electronics. The new unit is flexible and reliable thanks to a new generation Firmware. The new unit features a Configuration Tool that allows divers to interact with their rebreathers more easily. With this tool, divers can customize the settings on their dive computers, view dive books and customize their rebreather to suit their needs. The SE7EN can also be used with MAC computers, making it perfect for divers who wish to use their rebreathers from a computer.

The Poseidon SE7EN has three models and is one the easiest to use. The Poseidon MK6 Discovery model was first introduced as a recreational rebreather. Later, the Poseidon Se7en was upgraded to support the Poseidon M28 dive computer. The Poseidon Seven + latest version supports the Poseidon Solid State Sensor.
Mixed gas rebreathers
You should be aware of the following information if you want to pursue a career working as a mixed gas diver. First, you should know that you need to complete certain prerequisites in order to become certified in this type of diving. You should have at least one year of experience with a rebreather as well as experience diving to certain depths.
You should also be aware of the potential risks associated with diving with a mixed-gas rebreather. The most common problem is the failure of the gas injection system. This problem is more common with mixed gas rebreathers than in oxygen rebreathers. In the case of malfunction, these systems can be manually reprogrammed.
Rebreather maintenance
Proper maintenance is essential for your rebreather to work properly and reduce the chance of failure. Regular maintenance will extend the life of the unit, reduce the likelihood of the unit failing to dive and increase its efficiency. You can take care of your rebreather by following the instructions provided in its manual.
Rebreathers can be temperamental pieces of equipment so it is important to learn how to properly maintain them. This includes pre- and after-dive checks. It is important to learn how to use the equipment properly.

Disadvantages of rebreather
Rebreathers are highly sophisticated and require training to use safely. Certain manufacturers refuse to sell them to those who aren't certified. They can be extremely difficult to work with and can even cause damage. For example, they can leak pure oxygen into the loop. This could be very dangerous.
Rebreathers can be difficult to use due to their technical complexity. Rebreathers are more complex and require more training. Rebreathers require more advanced diving skills.