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A usually portable, lightweight, vestlike breathing apparatus that recycles oxygen from exhaled air, absorbs exhaled carbon dioxide, and has a small container providing fresh air, used by scuba divers and astronauts, as well as rescue workers in environments where the air is thought to be toxic.
References in periodicals archive ?
She had led a prestigious expedition in the summer of 1970 called Tektite II Mission 6, an all-female group who lived as saturation divers underwater in the US Virgin Islands for two weeks and carried out experiments and observations using rebreathers.
My parents and past generations simply couldn't imagine the ease with which people can now dive in places where no one had convenient access before--in the Arctic, in Antarctica, with scuba tanks or with rebreathers that allow you to recycle air and stay underwater for long periods of time.
However, because of the extreme depths, it was many years before technical divers using advanced electronic closed-circuit rebreathers were able to collect and preserve specimens in a way that would allow proper scientific documentation as an undescribed species.
In 2015, based on that map, divers used advanced technical diving equipment (including closed-circuit rebreathers with trimix breathing gases) to conduct the first systematic excavation of the wreck.
In the summer of 1999, I organized a two-day private conference in Berkeley, California, inviting nine associates in the right-to-die field (from Canada, the United States and Australia) to a demonstration of the helium technique, plus we introduced another device called a DeBreather based on the technology for Rebreathers developed for underwater explorers.
We will have more bottom time than any previous human visitors to the site, because we dive with mixed gas rebreathers,'' the expedition's website said.
ryukyensis Ishikawa, 1904, the latter two only recently revalidated (see Allen & Kuiter 1999, and Parenti & Randall 2000, for the earlier, and Allen & Erdmann 2012, for the latter) Recent discoveries of Cirrhilabrus have come from three broad categories: firstly, from remote locations where recreational and scientific divers have not dived regularly in the past; secondly, from closer examination of what was previously thought to be regional variations of a species; and lastly, from deep water collecting due to the improvement in SCUBA equipment, particularly rebreathers and mixed gas technology.
He dispatched helicopters to track competitors and deployed divers (using rebreathers so the telltale bubbles wouldn't arouse suspicion) to study the keels of rival yachts.
The near silent or "stealth diving" is ideal for underwater photo and video shoots as it allows divers to get closer to fish and for scientific purposes apart from remarkably extending the duration of underwater stay By Bonnie James/Deputy News Editor Recreational diving is getting increasingly popular and hi-tech in Qatar with closed-circuit rebreathers that eliminate the large burst of noisy bubbles released from conventional scuba with each exhaled breath.
Another important improvement, the V60 is submersible to 20 meters compared to the two meters of the X50, which means it can be carried without problems by Special Forces units using oxygen rebreathers.
Most types of today's rebreathers consist of a breathing loop, a canister where the scrubber can be stored along with the p[O.