A must-read article including rebreather checklists that can be copied and laminated. ©2008, Mark Derrick, IANTD O2ptima CCR Instructor
Latest version of the Juergensen Marine Hammerhead manual (version 2.01)
O2ptima FX User Manual Version 1 Revision 4 (issued 1.31.2009)
Interesting article about military uses of rebreathers
