Rick, The design is very simple, a screen on each end of a cylinder with a pancake fan to draw the atmosphere through it. Nothing proprietary about it. The ExtendAir unit just needs some flexible hose and a pancake fan interfaced to be ready to go…draw from the bilges and exhaust into the face of the operator or onto the observation port. R/Jay From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Rick & Marcia Speaking of Phil, anyone want to ask him (online, Phil?) if he's (you're) willing to let us use the design from DeepWorker? That would solve all of our problems. Proven, field-tested, designed by a specialist in life support. Assuming it's not proprietary. Rick in Vancouver |