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I regret not getting clearer pictures to zoom in and see the words on the instruments but I felt the need to be discreet as I was just walking by, these ocean-front home garages are rarely/NEVER left open unattended. What is this mystery chamber?
One more different angle picture in the comments, you can see the seating bench in the chamber.
If I were a billionaire, I would have the hyperbaric chamber, but have it powered in the most ostentatious way imaginable. Instead of having a motorized pump to pressurize it, I'm just going to hire a whole bunch of people with bicycle pumps to pressurize the thing for me. I'll hire like a hundred people, pay them absurdly well for the task, and have a hundred people show up just to perform a simple task that could have been performed by a cheap motor.
Also, my primary mode of transportation will be sedan chair.
See, this is how trickle-down economics are supposed to work!