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Folks, pleased to share that my new book about rebreather design and operational theory, "Closed Circuit | Open Sourced" is published and available now: hardcopy via Amazon: https://www.amazon.com/dp/1985160234 e-copy via LuLu: Closed Circuit | Open Sourced by Michael Lombardi (eBook) - Lulu

Hi folks, I am selling a variety of vintage regulators on eBay including: Aqualung Calypso US Divers Cousteau/Gagnon Aqualung Healthways Scubapro D400 (old model) and some other bits Many of these are highly collectible. This is the link: lombardiundersea items - Get great deals on...

Hey folks, I'm selling three ASME 5000psi bank bottles along with a steel rack to set them in. ASME bottles do not need to be re-tested for the duration of their service life. These are a perfect add on to a fill station to store a significant amount of HP gas. New these are $2500 each. asking...

Hi folks, Will be in Cavalaire France at the end of September on a family trip. Rather than pack all of my dive gear, I figured this might be an opportune time to refine my freediving skills. Anyone know of freediving/apnea courses in/near Cavalaire? many thanks

Hi folks, I am selling two 5' braided stainless transfill whips. One is CGA540 (for oxygen) to scuba yoke. The other is CGA580 (for helium) to scuba yoke. Both are in brand new condition, used only a handful of times. This pair is all you need to start basic blending/transfilling at home...

Hi folks, This is the first announcement of the 2010 Northeast Rebreather and Advanced Diving Technology Workshop to take place on Saturday January 23rd at the University of Rhode Island. The event will include formal presentations by several confirmed speakers, opportunities for...

I've been diving this simple yet very robust weight harness system doing commercial work for over a decade and have had several requests to produce them. Features 1. Wide belt protects hips from hard weights, and reduces wear on suits 2. All marine-grade stainless and brass hardware and...

http://www.rimonthly.com/Rhode-Island-Monthly/December-2008/Bad-Reputation/

Hey folks, wanted to share some video from a recent blue shark expedition: Everyday Explorers User Videos -- National Geographic a mini-documentary is being released in December

Hello Friends and supporters of Matt Johnston, We are pleased to announce that we have completed and published a dive manual/resource guide based on working with Matt over the last several years. The work is a blueprint that would allow other ventilator dependent divers to dive. It is...

Hello all, Just wanted to share my new online gallery, finally! It can be found here: an Ocean of Opportunity, where exploration is an art- powered by SmugMug or click on the Smugmug icon on Oceans of Opportunity All of the images were taken in support of, or during the various scientific...

Hey all, A sizeable selection of my underwater photography is now available via my website... Oceans of Opportunity . 100% of proceeds benefit Ocean Opportunity, a not for profit organization. Thanks in advance for your support!

Hey fellow ScubaBoarders! As we all know, Matt has achieved what was considered the unachieveable jsut a year ago...diving in the ocean. The project doesn't end there. We're working on a documentary highlighting the last 3 years of the Diving a Dream project, and developing standard practices...