Most portable oxygen concentrators sold in India are pulse-dose devices. A buyer searching for “portable continuous flow” needs a larger transportable machine with a compressor and battery system capable of supplying oxygen throughout the respiratory cycle.
Continuous-flow shortlist
| Device | Continuous-flow position | Best fit |
|---|---|---|
| Philips SimplyGo | Up to the low continuous-flow range by mode | Recognisable compact transportable system; verify current Philips support |
| CAIRE SeQual Eclipse 5 | Higher continuous-flow capability than ultralight POCs | Strong all-round transportable choice |
| SeQual Equinox | Continuous and pulse capability by configuration | Users prioritising a premium transportable platform |
| DeVilbiss iGo | Continuous-flow and pulse modes | Buyers with strong DeVilbiss service access |
Exact maximum flow and battery runtime vary by setting and battery condition. Confirm the manufacturer table for the delivered unit.
Why these machines are heavier
Continuous flow consumes oxygen and battery even during exhalation. That requires larger sieve beds, compressor capacity, and batteries. A genuine continuous-flow transportable may weigh several times more than a pulse-only POC.
If a listing claims very high continuous LPM from a tiny machine, ask for the manual and purity curve. Adjustable “1–7 litre” consumer units often reduce purity as the displayed flow rises.
Buying rules
- Match continuous LPM, not pulse-setting number, to the prescription.
- Conduct a supervised walking test on the exact machine.
- Check runtime at the prescribed continuous-flow setting.
- Price a replacement battery before buying.
- Verify airline approval for the exact model and battery.
- Keep a stationary concentrator for routine home LTOT unless the clinician says otherwise.
When pulse dose is still better
A pulse-dose POC is lighter and lasts longer per battery. It can be appropriate when the patient reliably triggers the device and maintains target saturation during a walking test. See the Top portable oxygen concentrators in India for the wider market.
Verdict
Eclipse 5 is the strongest broad transportable shortlist option; SimplyGo is attractive for a more compact recognised ecosystem; Equinox and iGo are alternatives where their service and exact flow capability fit. Buy only after testing the patient at the prescribed continuous setting.