It could be that "old dog new trick" thing, but I'm skeptical about rebreathers, perhaps because I'm
afraid I'm being force-fed technology. But I have to admit there are a few situations when diving with a
rebreather makes sense: 1) You require the decompression advantages and extended range (gas duration)
offered by a closed circuit or high-end semi-closed system (for use in deep or working dives, for example);
2) You're looking for stealth to improve your interactions with wildlife; or 3) Your dive location makes
carrying multiple tanks/compressors impractical (for example, in the jungles of the Yucatan). However,
improved interaction with wildlife is the only one of these reasons that has much to do with sport diving.
Also, I can't help questioning whether we are being pushed into this technology by economics. Is
rebreather technology really something sport divers need, or are we being pushed by an industry looking
for new ways to jazz up training and sales because their market has gone flat? It's not that I'm opposed to
progress. I just can't help wondering if rebreather technology is being marketed prematurely--and to the
wrong audience.
After returning from this year's Diving Equipment and Marketing Show (DEMA) in Anaheim, where
rebreathers were once again a major hype, I asked technical diving guru, aquaCORPS and tek.Conference
founder Michael Menduno (a.k.a. "M2") to fill us in on the status of the manufacturers (and would-be
manufacturers) of rebreathers as well as the new involvement by the Occupational Safety & Health Administration
(OSHA).
-- J.Q.
At the DEMA rebreather
party in January, it was apparent
who was interested in
rebreathers: techies, military
divers, industry execs, engineers,
film-makers, photographers, and
scientists. Although rebreathers
are constantly featured in sport
diving magazines these days the fact
is that few sport divers have them.
As of today only 1200 units
are in the hands of users, which
is not much compared to the
millions of regulators out there.
Drager is clearly the leader,
having sold an estimated 1000
consumer semi-closed systems.
From there, one can see a big
investment that so far hasn't
yielded a return. Biomarine
Instruments and Cis-Lunar Labs
have sold about 30 each, and
Brownie's Third Lung has
reportedly sold seven of its
unique semiclosed systems.
American Nitrox Divers, Inc.
(ANDI), AURA, and Cochran
Undersea Technologies are
promising second-quarter
shipping dates. (Of course, they
made the same claim at last
year's show, though they are
evidently getting closer to
bringing a unit to market.)
Meanwhile, Oceanic, Inc., is
prohibited under a Federal
court order from entering the
U.S. rebreather market until
next year because of a 1995
lawsuit with Underseas Technology,
Inc. According to Oceanic
president Bob Hollis, however,
the company has already sunk
several million dollars into
development efforts and is
committed to bringing a
rebreather to market next year.
Trainers and manufacturers
are at least gaining muchneeded
experience with the
emerging technology. Even so,
issues about government regulation, training, and equipment
and testing standards are far
from being resolved.
Manufacturers say they will
keep a tight rein on training.
Initially, many will offer
company-run training courses
certifying agency trainers.
Unlike regulators, each
rebreather unit will have specific
requirements. Steam Machines
has contracted with NAUI to
write a semi-closed rebreather
training program. PADI is
reportedly working on a Drager
training program.
Drager is aiming squarely at
the recreational market. Its
second generation Dolphin
which nows offers an optional
O2 meter and has the "electronic
hooks" in place to eventually
add a decompression meter.
It retails for $2,999, down from
$3,999.
The immediate challenge is
convincing federal government
regulators to allow them to train
consumers without being subject
to commercial diving regulations.
Currently, rebreather instruction
falls outside the 1974 exemption
from commercial regulations
granted to recreational scuba
instructors by the Occupational
Safety & Health Administration
(OSHA). Legally, this means that
rebreather instructors fall under
statutes requiring an onsite
recompression chamber, and
there are other OSHA stipulations
that apply whenever they are
conducting classes or guiding a
dive. Technically, these regulations
apply to nitrox instruction as
well, though OSHA has chosen
not to enforce them due to
budget limits.
To protect their prospective
investments, Oceanic, Inc., and
PADI initiated legal action in 1995
to extend the recreational exemption
to rebreather and nitrox
instruction. Later, their individual
appeals were combined into a
single variance request that has
wound its way through the
regulatory minefield over the last
three years. Their proposed
variance was published in the U.S.
Federal Register last October
(www.osha-slc.gov/FedReg_osha_data/FED19971031A.html). DEMA
members were informed of the
impending variance only three
weeks before the December 31
deadline for public comment
through a letter printed on DEMA
letterhead and signed by Oceanic
and PADI CEOs Bob Hollis and
John Cronin.
Industry pundits called it a
blatantly anti-competitive move.
Ironically, as written, the variance
would exclude technical diving
instruction that involves decompression
and deep diving, the
very communities that pioneered
these technologies in the
first place.
After a flurry of calls and emails,
Cis-Lunar CEO Richard
Nordstrom was able to wrest a
60-day extension on the comment
period from OSHA, but the
controversy had awakened the
sleeping giant. According to
OSHA officials, the agency
believed the variance represented
an industry consensus and was
unprepared for the response.
DEMA executive director
Bob Watts called an open
industry meeting on the first day
of the show where Oceanic and
PADI presented their case.
Nordstrom and other manufacturers,
unhappy with what they
heard, organized a second
closed meeting for rebreather
and technical training agency
executives at which the group
unanimously agreed to oppose
the variance as written.
Commercial diving interests
are strongly opposed to a
variance and want the underlying
legislation rewritten. Under
current regulations, commercial
operators are required to have
an onsite chamber only when
conducting mixed gas diving
(including nitrox) and for
diving beyond 80 feet.
It's uncertain whether
vendors and the technical diving
agencies will ever agree. According
to one rebreather executive
who tried to organize an effort to
address the variance before the
show, most manufacturers refused
to talk to one another and treated
competitors as the enemy.
OSHA would like to wrap up
the issue by June. Even though
the regulations would only apply
to training in the U.S., the
outcome will have far-reaching
implications for the industry
globally. One result could be that
American sport divers will have to
leave the U.S. for deep and
decompression diving training.
Editor's note: I'm being the
skeptic once again, but I wonder
if all of the hoopla about OSHA
variances isn't just an industry
power struggle to see who gets
control of rebreather training and
all the money that will go along
with it. My biggest fear is that, by
dragging in OSHA to settle a
quarrel, the industry may inadvertently
bring government
control to nontechnical diving.
A diver since 1976, Menduno, who coined the
term "technical diving," is a freelance writer
based in Santa Cruz, CA. E-mail him at
m2aqua@worldnet.att.net.