Peter Sotis

Founder and Owner, Add Helium, LLC
Owner of Forum, “The Deco Stop”
Owner of Forum, “Rebreather World”
Member of the IANTD Board of Advisors
IANTD Instructor Trainer Trainer
IANTD Instructor Trainer – Cave, Technical Cave, Trimix, rEvo, Optima, Hollis Prism2, Hollis Explorer, Megalodon, Pathfinder, Poseidon, Titan
IANTD Instructor – Evolution, Inspiration, Sentinel, Hammerhead, KISS, Flex Extreme, Advanced Wreck, DPV, Full Face Mask

Peter is qualified to develop divers, instructors and instructor trainers to any level. As a member of the IANTD Board of Advisors and the Director of Training for Add Helium, he is training others and is developing training programs that reflect his experience and dedication to the sport.

Peter’s passion for rebreather diving and exploring has lead to the development of the Add Helium dive team and the Add Helium Science Council. This highly trained team consistently pushes the limits as they explore deep walls in excess of 600 feet, deep wrecks and extreme caves. Peter is currently leading a cave exploration in Quintana Roo, Mexico, also known as the “Pit Project”. Its progress can be followed on the Add Helium website.

Peter is the inventor of TruDive, an innovative and accurate method for dive planning. This system is currently being built into a platform for general use and will be released in the near future.

Peter’s vision was to create a professional organization that allows diver’s to develop to their greatest potential. Add Helium’s business model and all of its components are the culmination of that vision.

Ken Wesler

Administrative Director

Ken had a long career in the performing arts, starting as a child actor. He became a theatre producer, producing over fifty plays and musicals. He then became a finance consultant and concluded his arts administration career as the CEO of large performing arts centers. During that time, Ken was a passionate diver, and when he left show business, he was happy to become a dive professional.

Ken manages the administrative functions of the company, from finance to real estate and IT.

He and his wife of thirty years, Deborah, have two children: Alexander, 27 and Samantha, 24.

Managers & Staff
Deb Wesler
Deb Wesler

Store Manager

Deb Wesler is an OC diver, with a long and extensive background in customer service and retail, in multiple diverse areas, from women’s clothing to jewelry and pet supplies! She had a distinguished career in the performing arts, starting as a stage manager, with long experience as a Box Office manager, serving over 50,000 customers each year. She concluded her performing arts work in marketing, coordinating media buying, copy writing, and working with artists’ representatives, for performers ranging from John Legend, to Penn & Teller, to Evil Dead the Musical!

She has also had her own faux finishing business, which included both residential and commercial clients.

Rick Thomas

Service Manager

Rick is a: PADI OWSI, Search & Recovery Diver, NACD Cave Diver, and an Underwater Crime Scene Investigator as well as a Poseidon Mark VI & Se7en diver

Rick studied engineering at The Ohio State University before embarking on a long career in oil production. Primarily served as rigging superintendent for a major offshore derrick manufacturer which included projects in the North Sea and the Gulf of Mexico. He was responsible for erection and setup of complete offshore drilling rigs from crown to sea floor.

Rick has worked and trained with many law enforcement and fire department search and recovery teams and enjoys cave diving as well as wreck diving. Having had a taste of silent, bubble free diving he has dedicated himself to rebreather diving these days.

Maggie Lebron
Maggie Lebron

CCR Diver, OC/OW Instructor

Maggie joins Add Helium with many years of customer service experience. Maggie’s primary focus to assure that a client’s training experience with Add Helium is smooth and is going according to plan. Since details do make a difference, Maggie is coordinating everything a client may need. From class materials and equipment, to hotel reservations, and car rentals, Maggie is here to make your time with Add Helium great.

Ryan King
Ryan King

Director of Educational Materials
CCR Normoxic, CCR Cave, OC Instructor

Ryan has always been fascinated by the ocean. He grew up in New England and began diving in 1996. It didn’t take long for him to pick up his first camera and, for more that 25 years, he’s been exploring and photographing caves, wrecks, reefs and other sites from Canada to the Caribbean and Mexico. In 2011 he moved to a rebreather and has never looked back. Recent trips have taken him to explore wrecks in the Great Lakes and Stellwagen Bank off Massachusetts, caves in Florida and Mexico, and other sites throughout the Gulf of Maine and Eastern Canada.

Ryan has over 15 years experience in education. During that time, he has worked as a SCUBA Instructor, Middle and High School Science Teacher, an Educational Technologist, and an adjunct lecturer at the college level. He has a passion for taking complex topics and making them accessible engaging for all students.

Ryan helps to develop all of the specialized lectures, powerpoint presentations and educational materials used by Add Helium.

Robert Johnson
Robert Johnson

Staff Instructor – Dive Rite O2ptima, OC Trimix
Repair Technician
CCR Trimix, CCR Cave, OC Trimix

Robert always felt a kinship to the ocean and for his 13th birthday his parents provided for his open water certification. Eventually, Robert became intrigued with rebreathers and at the age of 19 decided to develop his own. Since then his design has undergone numerous changes and upgrades, as it continues to be a work in progress.

Diving opened up the opportunity to travel and Robert has enjoyed many trips to Bonaire and Curacao. He moved to Florida in 2010 from Maryland and began working as a dive master. As he is drawn to the deep sea doing technical dives, his goal is to teach others how to dive safely.

Joe Citelli
Joe Citelli

Instructor – Megalodon, Pathfinder, Hollis Prism, CCR Trimix, CCR Cave

An elected member of The Explorers Club, Joe Citelli has over 30 years diving experience and is a veteran of numerous remote location, deepwater shipwreck and cave expeditions. He has dived caves all over Florida and Mexico. His wreck diving experience include the famed Andrea Doria, The USS Virginia and The City of Everett. He also participated in expeditions leading to the identification and documentation of multiple shipwrecks, such as the Esmeralda, Holsten, Joseph M. Cudahy, Kringeline, Munger T. Ball, Pan Massachusetts, and The Queen of Nassau. In 1991 he was part of the first (helium) mixed gas program offered by IANTD which established the standards and procedures in use today. When not working at his auto parts business, Joe can usually be found in a cave or on a shipwreck somewhere.

Joe’s commitment to teaching is born out of his enthusiasm for the sport. By the way, he is also a great storyteller!

Doug Ebersole
Doug Ebersole

KISS CCR/SCR Instructor

Douglas Ebersole, MD started diving in 1974 and is an experienced rebreather, technical, and cave diver. He began teaching recreational scuba diving in 2002 and became a technical diving and rebreather diving instructor in 2005. He is currently a very active rebreather instructor on several different units and teaches rebreathers from entry level to CCR trimix. Doug’s “real job” is as an interventional cardiologist for Watson Clinic LLP at Lakeland Regional Medical Center in Lakeland, Florida where he specializes in coronary and structural heart interventions. He has a special interest in in PFOs and diving and diving with coronary artery disease. He has lectured around the world on various topics in diving medicine and is a cardiology consultant to Divers Alert Network (DAN).

Science Team
Dr. Edwin (Rick) Slott, MD, PhD
Dr. Edwin (Rick) Slott, MD, PhD

Member Add Helium Science Council
CCR Trimix, CCR Cave, rEvo, Evolution

Dr. Slott is a Diplomat of the American Board of Emergency Medicine and holds a PhD in genetics. Over the years, Dr. Slott developed additional interests in hyperbaric medicine and exercise physiology.

As an avid CCR diver, Dr. Slott is certified on multiple units up to full trimix.

Dr. Slott is an invaluable member of the Add Helium Science Council. With his unique background, talent and interests, Dr. Slott joins the team that aims to educate divers regarding all physiological aspects of diving. Current and future postings on the topics of fitness and diving can be found on the Add Helium Website’s Science Section.

John "Ozzy" Osgood
John "Ozzy" Osgood

Member Add Helium Science Council
LMT, NMT, Personal Trainer
CCR Trimix Diver

Mr. Osgood is a personal trainer and a licensed neuromuscular massage therapist. Ozzy utilizes his expertise to implement movement specific exercises optimizing one’s body for diving. He believes in preparing the body for the exertion of diving

John’s expertise is essential to the Add Helium dive team. His 15 years of diving experience coupled with his professional background brings about a unique and effective approach. Acting as the team personal trainer and nutritionist, his participation is a key component in preparing the team.

John’s input is also invaluable to the Add Helium Science Council. He provides insight into much of the research information as they collaborate over the latest findings pertaining to diving.


Todd began diving in 1987 while serving in the Marine Corps. He has dived remote areas of the Indian Ocean, Mediterranean Sea, Caribbean Sea, and up and down both coasts of the U.S.

Todd began technical diving in 2012 and became certified on a rebreather in 2014. He moved to Florida in 2016 and began working as a Divemaster and scuba repair technician.


As the Add Helium dive team began to explore deeper and further, they were not satisfied with the “status quo” of information. Training agencies and industry experts clearly disseminated outdated and unsubstantiated information.

We all need information based on valid research to achieve optimal dives.

The information you seek, the information we all seek, is here on our site – take a peek and improve your dives.

13 Jan
Obesity, Fitness and Diving

Jan 13th, 2015 by admin in Business ,Rebreather Diving

It is not a secret that obesity is a growing problem in the United States. Obesity is getting daily exposure on the TV networks, radio stations, newspapers, and magazines. While standing in the supermarket checkout line, one is tempted to read magazine headlines promising wonder-diets and exercise routines to transform the overweight in only a,

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19 Mar
Rebreather Myths

Mar 19th, 2015 by admin in Business ,Rebreather Diving

In today’s world, navigating available rebreather information can be confusing, frustrating, and misleading. Consumers enquiring about rebreathers are often surprised by how disconnected the industry is. Over the years the Add Helium staff has had the pleasure of speaking with many people that wish to purchase a rebreather. Usually, we are not the first rebreather,

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15 Jun
Coming Full Circle: Diving the O2ptima…again.

Jun 15th, 2015 by admin in Business ,Rebreather Diving

By October of 2007, I had become an Optima diver. Trading in my doubles for a rebreather was a careful decision; one involving research and asking questions. I certainly did not want to buy a “garage made” rebreather and Dive Rite, a major manufacturer of technical diving equipment, was presenting a “factory made” rebreather. Eventually,,

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