How many watts does an oxygen concentrator use?

Home units in maker specs range from about 100 W to 400 W. Philips lists 350 W average for the EverFlo; Invacare lists 400 W average for the Platinum 5; DeVilbiss lists 310 W average for the 525DS and 275 W at 2.5 L/min and below; CAIRE lists 285 W at 2 L/min for the Companion 5; Inogen lists 100 W on flow setting 2 for the Inogen At Home, with a 275 W power supply.

How long will a power station run an oxygen concentrator?

Hours, not days. At the EverFlo's 350 W average and an 85% conversion factor, a 1,070 Wh Jackery Explorer 1000 v2 lasts about 2.6 hours and a 4,096 Wh EcoFlow DELTA Pro 3 about 9.9 hours. Keep backup oxygen as your supplier advises.

Is a power station enough backup for home oxygen?

No. It can bridge a short outage at best. The FDA advises checking with your device maker or supplier about battery use and telling your electric company and fire department that you use a powered medical device; if you depend on the device to stay alive, seek emergency services.

How much power does an oxygen concentrator use?

Maker figures for five home concentrators, and how many hours a power station could run each one. The short answer: a few hours, not days.

Last updatedOct 18, 2026

Concentrator powerPhilips, Invacare, DeVilbiss, CAIRE and Inogen spec sheets and manuals, read Oct 18, 2026

A power station does not replace backup oxygen

This is a planning estimate from published specs, not medical advice. Keep backup oxygen cylinders as your supplier advises. The FDA advises asking your device maker or supplier whether your concentrator can run on battery power and how, telling your electric company and fire department that you use a powered medical device, and using battery lights, not candles or gas lights, when oxygen is in use. If you depend on a device to stay alive, the FDA says to seek emergency services. What to check first.

Result

Every station against this concentrator

None of these makers publishes a start-up surge for its concentrator, so only the running output is checked; ask your supplier. Prices are what each maker's US store showed on Oct 18, 2026.

Every station in our table against this load
Station	Capacity, Wh	Runs it for	AC output, W	Surge, W	Store price	Verdict

Concentrator power from maker specs

Power figures as each maker states them, read Oct 18, 2026
Concentrator	Figure	Watts	Hours on 1 kWh usable

Hours on 1 kWh usable = 1,000 ÷ watts, a quick comparison. A 1,070 Wh station gives about 910 Wh usable at Jackery's 0.85 factor.

How the hours are worked out

Hours = capacity × share you can use × inverter efficiency ÷ the concentrator's watts. Makers state power differently: Philips and Invacare give an average, DeVilbiss and CAIRE give a figure at a low flow and an average or maximum, and Inogen gives the power supply's rating plus a figure at setting 2. Use the one closest to your prescribed flow, or the higher one if unsure. Sources are on Methods and sources.

CPAP and oxygen: read first
What the FDA advises for powered medical devices in an outage.
CPAP on a power station
Nights by pressure and humidifier setting, from ResMed's tables.
Size a station
Plan a whole outage day around the equipment you need.