Dräger Dolphin

Dräger Dolphin‏‎ is a semi-closed circuit rebreather developed by the German company Dräger. It is designed for recreational scuba diving and is known for its reliability and ease of use.

History

The Dräger Dolphin‏‎ was first introduced in the late 1990s as a response to the growing popularity of technical diving. It was one of the first rebreathers to be marketed towards recreational divers, and it quickly gained a reputation for its simplicity and safety features.

Design and Function

The Dräger Dolphin‏‎ uses a semi-closed circuit design, which means that a portion of the exhaled gas is recycled and reused by the diver. This is in contrast to open circuit scuba systems, where all exhaled gas is released into the water. The advantage of this design is that it allows for longer dive times and less gas consumption.

The rebreather consists of a breathing loop, a scrubber canister, and a gas supply. The breathing loop is where the diver inhales and exhales. The scrubber canister contains a chemical substance that removes carbon dioxide from the exhaled gas. The gas supply provides the diver with a mixture of oxygen and nitrogen, known as Nitrox.

Safety Features

The Dräger Dolphin‏‎ is equipped with several safety features. It has a manual addition valve that allows the diver to add gas to the breathing loop if needed. It also has a bailout valve that allows the diver to switch to an open circuit system in case of an emergency. Furthermore, the rebreather has a built-in pressure gauge and depth gauge to help the diver monitor their dive.

Training and Certification

Using a rebreather like the Dräger Dolphin‏‎ requires special training and certification. This is because rebreathers are more complex than open circuit scuba systems and require a different set of skills to operate safely. Several dive training organizations, such as PADI and SSI, offer courses on rebreather diving.

See Also

• Scuba diving
• Technical diving
• Rebreather diving

Dräger Dolphin Resources
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