Due to Alexandra getting fully encased within multiply layers of airtight latex, and her throat and mouth being completely filled by the massive gag, a new method for her to receive oxygen is necessary.
Function
The massive space created within Alexandra’s breasts after the removal of the large breast implants is partially repurposed to meet her oxygen requirements. The implant in her left breast is replaced with a tank containing a nearly pure oxygen solution, with a density similar to the nutrient solution found in the food tank in her other breast. The tank is surrounded by enough silicone material to provide Alexandra with the exact same sensation—an identical feeling of touch and behaviour—as if she still had her silicone implants. It is connected to the artificial heart, which then feeds the oxygen straight into her bloodstream.
Because of the CO₂ recycling in the chemical engine, much of the injected oxygen is actually regained. This means the oxygen tank only needs to be refilled every few months, although Lumina prefers to make the maintenance process a much more frequent occurrence.
The resupply connection to the tank is passed in between Alexandra’s ribs during her surgery, and is then surgically fed into Alexandra’s stomach. This way, the oxygen tank in her breast can be resupplied through the supply tube going through her entire body.
With Alexandra’s lungs completely removed and the power supply having taken up their place, Alexandra is incapable to breathe any more. Her oxygen is directly fed into her blood stream. Because of this, Alexandra’s chest doesn’t have the usual up and down movements usually associated with breath.