The CDLSE is made by Divex in Aberdeen

Aberdeen

Aberdeen is Scotland's third most populous city, one of Scotland's 32 local government council areas and the United Kingdom's 25th most populous city, with an official population estimate of ....

, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

.
It is an electronic closed circuit rebreather

Rebreather

A rebreather is a type of breathing set that provides a breathing gas containing oxygen and recycled exhaled gas. This recycling reduces the volume of breathing gas used, making a rebreather lighter and more compact than an open-circuit breathing set for the same duration in environments where...

 designed to be silent and non-magnetic. It allows diving to 60 metres (196.9 ft) using air as diluent, or up to 120 metres (393.7 ft) using
heliox

Heliox

Heliox is a breathing gas composed of a mixture of helium and oxygen .Heliox has been used medically since the 1930s, and although the medical community adopted it initially to alleviate symptoms of upper airway obstruction, its range of medical uses has since expanded greatly, mostly because of...

 and trimix.

Some sources describe it as a "Stealth Clearance Divers Life Support Equipment".

, the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 plan to use it to replace the Carleton CDBA.

It is also used by the French Navy.

Its absorbent is designed to last four to six hours.
Designed to work with either a bite mouthpiece and standard half mask, or with Divex's proprietary Dual Mode Mask.

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