Portable vs. home oxygen concentrator: who genuinely needs both

The engineering trade is simple: a portable concentrator spends its weight and battery budget on being carryable, which caps its output — most portables are pulse-dose machines topping out around settings 5 or 6, with only a few offering low-rate continuous flow. A stationary unit plugs into the wall and spends everything on output: 5 LPM continuous is standard, and high-flow models like the Caire NewLife Intensity 10 reach 10 LPM.

Price runs opposite to portability. In our catalog, new stationary units run $649–$1,995 with several strong options at $749, while new portables run $1,995–$3,200. That inversion surprises people — the machine that does 'more' oxygen costs a third as much — but you're paying the portable premium for batteries, miniaturized compressors, and FAA clearance, not for flow.

The deciding questions are your prescribed flow and your nights. A prescription above 3 LPM continuous rules out nearly every portable as a sole machine. And even at lower flows, if you need oxygen during sleep, pulse-dose triggering becomes the constraint — which is why the bedside machine is so often the stationary one regardless of what you carry by day.

That's how people arrive at owning both, typically a $749-class stationary as the workhorse and a portable sized to their actual outings. If the budget only covers one machine right now, buy the one that covers your prescription around the clock first — mobility is a quality-of-life upgrade, but nights are non-negotiable.