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Comment by genewitch | Hacker News Reader

$1000-$3000 isn't decent for my use case; basically i want to use oxygen instead of ibuprofen for minor aches, coupled with heat or cooling. I find that pure oxygen does wonders for minor headaches and neck pain that i experience. $15-$25 a liter for oxygen is also not a decent price, relatively.

At one point i found some concentrators that were ~$500, sadly i did not order and the brand name was alphabet soup; good luck finding that again!

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$1000 is for brand-name. Used/imported are cheaper.

Refills of LOX are cheap, but you need to pay for the cylinder, which is expensive. At the end of the day you can get welding oxygen, which is exactly the same as medical/aviator. (And also you need to handle the cylinder safely)

Anyway, just start with Boost and see if it helps. They run out quickly, but nothing beats the convenience.

New cylinders can get a little pricey but used bottles can be found dime-a-dozen on Craigslist/FB Marketplace/etc. Just need to know how to properly inspect a tank. Gas supply stores can get really particular about BYOBottle because of the safety/liability component, but they'll typically treat a no-fill tank as the deposit for a new tank in much the same way consumer propane tank exchange works.

Boost is likely the way to go for OP. I first saw them in Walmart in 2012 as a freshman at a military college. They made the surprise cadre workouts and X mile rucks suck so much less that I'd buy them all up when we were on liberty to sell out of my supply box. Really clever bit of kit, and the mint scent was a nice touch.

Check on alibaba.com...plenty there for under $500.

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