
SCUBA REBREATHER
UNDERWATER BREATHING APPARATUS
Scuba diving has taken the idea of exploration to an extreme level. For me, the most important aspect of this type of activity is that it serves as a gateway into experiences which push people into discovery and self-realization. The goal for the this project was to design a tank-less breathing apparatus for scuba divers.

THE SCIENCE BEHIND
“One spoonful of this stuff could turn you into Aquaman” - CNET
With the discovery of a new crystal, dubbed the “Aquaman Crystal”, the idea of humans breathing underwater is now a reality. Kona takes advantage of the crystals’ ability to capture oxygen from water and store it until needed.


COMPONENTS
Kona’s multi-chamber system provides the potential for unlimited dive time and the elimination of air tanks. Kona was designed as a back up air supply for scuba divers, but could be beneficial in multiple other aquatic applications.
MODEL EXPLORATION
During the design process multiple prototypes were created to gain insight into final product size and form factor.


MODEL REFINEMENT
Kona’s hydrodynamic shape, which was inspired by the Manta Ray, helps it cut through the water without creating too much drag. To increase diver comfort, exhale exhaust vents were placed on the sides to keep the diver’s view clear of bubbles.
FINAL
To recharge the device, water must be pumped into chambers that hold a synthesized crystalline material that absorbs oxygen from the water. Kona is sonic welded, giving it a nice, clean appearance with no external fasteners.


DESIGN & USAGE
To clear the device of any water in the breathing chamber, a purge button is used to clear the chamber and allow for breathable air to travel to the diver. By ergonomically placing the button underneath the device, it gives the diver the simplest way to reach and activate the button.
BIOMIMICRY
The intake and water drainage ports for this system are placed on the front of the device, resembling the gills of a Manta Ray.


IN ACTION
Kona attaches to buoyancy compensator via a standard mouthpiece clip. Purge button is manually depressed to force air through the device to clear water from breathing stage.

