1. Closed-Circuit Rebreather By: Jake Griffith ITMG 100 Section 5

2. Introduction  Used in place of traditional scuba set up  Exhalations recycled  More efficient  Has yet to enter the mainstream http://www.oceanlegends.com/files/CCR-Diver-.jpg

3. How It Works  Closed system  Passes through scrubber twice  Addition of pure oxygen from small bottle  Counterlungs  Emergency Nitrox bottle  Rebreather Diagram Rebreather Diagram

4. Advantages & Disadvantages ProsCons Increased diving timeMore training and discipline Increased diving depthEquipment and training expensive Decompression efficiency Additional warmth Lighter weight No bubbles Divers with rebreathers

5. Predictions  Open-circuit SCUBA system will become obsolete  Disadvantages will be overcome  Photography & Filmography  Marine Science  Military uses

6. References  Lombardi, Michael. "Rebreather Technology - Rebreather World." Rebreather Technology - Rebreather World. N.p., 1 Nov. 2005. Web. 11 Nov. 2012..  "Rebreather Advantages." Rebreather Advantages. N.p., n.d. Web. 11 Nov. 2012..  "Rebreather Disadvantages." Rebreather Disadvantages. N.p., n.d. Web. 11 Nov. 2012..  "Rebreathers." The Scuba Doctor. N.p., n.d. Web. 11 Nov. 2012..  Reynolds, Glenn H. "Deep Rebreathing." Popular Mechanics. N.p., 16 Aug. 2006. Web. 11 Nov. 2012..  Reynolds, Glenn H. "New Scuba Re-Breather Tech: Test Dive « Big Blue Technical Diving News and Events." Big Blue Technical Diving News and Events. N.p., n.d. Web. 11 Nov. 2012..