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  1. OceanOpportunity

    New Rebreather Book, Closed Circuit | Open Sourced

    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
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