In case anyone else was curious, looks like the most common use is for the rich to recover faster from the bruising and swelling of plastic surgery.
What is this thing?
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
Dragon Ball Z-lift
It can also help with a lot of conditions like MS and ME.

That's definitely a hyperbaric chamber.
I did an image search for "hyperbaric chamber" and this place popped up in the first few results, and whatever chamber they're using looks very similar to that one, so it's likely from the same manufacturer https://www.facialplasticsurgeryofaustin.com/about/our-on-site-hyperbaric-oxygen-treatment/
Edit: specifically that's apparently a hyperbaric oxygen therapy or HBOT chamber
Could it be for diving decompression?
I guess you could use it for that too? And it's not like it's 100% guaranteed that it's only an HBOT chamber, since I'd assume you could use it with just air instead of more-or-less pure oxygen
That is what they use them for. So yes.
Fuck me, I'm dumbfounded that people with billions would choose to live on a fucking main street.
There are more cars in that one picture than I see in a week. Christ.
It's a few houses down from one certain house where JFK & Marilyn Monroe played hide the salami together, where also years later Paul McCartney & John Lennon were last together in the same place (or something Beatles last time something). Paris Hilton also had a house here further up the road before the January 7th fires consumed it. These homes are usually empty because the people who own these houses have several homes all over the world, so these are just an occasional beach retreat for them, an eyesore and ocean-view-blocker for everyone else.
Anyway my point is, it's a popular well-known area, right by the ocean, which means everybody wants a piece of it, both major highway & billionaire beachfront homes. In fewer words:
Pacific Coast Highway.
Would a billionaire live on a busy street like that? Maybe just a multimillionaire.
Personally, if I was a billionaire, I’d rather have a maid and groundskeeper than a hyperbaric chamber.
If you were a billionaire you wouldn't have to choose. It's no longer "or," it's "and" for everything.
And a personal chef. Not having to cook everyday is a privilege.
They aren't everywhere, but there are "meal prep" companies that work out of local commercial kitchens and deliver full weeks of meals to your home.
Not as cheap as making it from a scratch, but cheaper than hello fresh and others, and much cheaper than uber eats.
If I had a chef they’d hate me.
“Chicken nuggets again sir?”
“Yes! And god help you if the dinosaurs aren’t recognizable again. What the hell are they teaching you up in France? Clearly not teaching about the Jurassic period! I will have your ass deported next time. Get it right!”
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!
...and you didn't molotov it? Class traitor.
"I don't even want to take a whizz on this. I used to dream of taking a whizz on this!"
Earlier I saw a stand-up comedian lambast a pregnancy test company for marketing their products as "the most sophisticated technology you will ever urinate on" as a tagline that plays poorly with women but strongly with men. Men would love to piss on something high tech.

A fellow cartoon connoisseur I see!
It's a reptillian machine to reconstruct the human skin.
Beachfront billionaire with a SCUBA hobby perhaps? That's a hyperbaric chamber.
What I thought too, but it's not like you can climb out the water with the bends and stroll home.
maybe we're wrongly assuming they use it inside their garage? maybe it's just being stored but idk
Yeah my idea exactly. What would you even do with a hyperbaric chamber
Edit: apparently it has health benefits
https://my.clevelandclinic.org/health/treatments/17811-hyperbaric-oxygen-therapy
If I was filthy rich and had the space, I'd go for it. Be interesting to see how fast my flesh wounds heal, throw my wife in there when she has a headache.
https://baricboost.com/hyperbaric-chamber-cost/
According to this site, might not be too expensive (I was thinking 6 figures at least)
No but it could mean the difference between having one available for you to get rushed to by emergency services rather than the local hospital which may or may not be close by.

It's their time machine, don't let them know you know.
I could see an ultra rich scuba diver buying a hyperbaric chamber for their yacht. Decompression sickness is deadly and this is the only treatment. Hyperbaric chambers aren't common, there might not be one in an entire country. We get warnings about their availability when traveling. If you're diving off your yacht in a remote location, this could save your life.
That said, there's a step set up. Maybe they're shore diving at home and decided to splurge on something crazy and unnecessary.
My thoughts didn't go to diving, but hyperbaric oxygen therapy.
Probably more likely, I didn't know it was useful for stuff like plastic surgery.
Some people also just use them for purposes that are less clinical. Hyperbaric chambers back in the day were one of those cure-alls that were and are purported to treat all sorts of ailments, increase mental performance, sense of wellbeing, etc. I imagine it's a mix of real uses and bogus uses, but billionaires love to splurge on that kind of thing.
I think it's a Macy-Pan Hyperbaric Oxygen Chamber. I found an image but the link doesn't load
That site sometimes loads and sometimes doesn't, but this appears to be the exact model

They think it gives them "sexual" powers.
Mmmm sweet sweet candy
dramatizationmaynothavehappened
All that money and their garage looks as dirty and pleb as the rest of us.
Your second picture is a very recognisable location. I sussed out the house on Google maps - it’s a foreboding kind of architecture when it’s all closed up. I guess if you’re never there you don’t want people feeling like it’s accessible. The houses next door look like they have turntables for their cars in their driveways - that is some expensive luxury convenience there.
I was assuming it was a fancy cold plunge pool since there are 2 massive water chillers hooked up to it. But the 2nd photo makes it clear it's hyperbaric O2. The water chillers must be for climate control since you don't want any fans or anything else that may cause a spark in a high oxygen environment
