This second edition of Jeff Bozanic's Mastering Rebreathers is a comprehensive look at rebreathers, written for the diving industry. Its chapters cover all types of rebreathers currently available; the history, physics, physiology, and theory of rebreather diving; pre-dive, dive, and post-dive procedures; and maintenance and travel considerations. It is designed for use as a generic textbook for all agencies and rebreathers. Mastering Rebreathers, Second Edition is the perfect tool for those who would like to experience the thrill and excitement of expanding their diving skills and re-invigorating their passion for diving. In well-trained and well-informed hands, a rebreather will not only enhance the capabilities and enjoyment of diving, but will increase safety as well. Whether you are new to rebreathers and are using this book as part of a formal training course; if you've been diving with rebreathers for years and have bought this book to add to your library; or even if you are just curious to learn more about this exciting form of underwater life-support, you will find enormous value in the meticulously updated Mastering Rebreathers.